| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 700271000 | Refinement or purification or rejuvenation | 36 |
| 20080234868 | METHOD AND APPARATUS FOR DECOKING TUBES IN AN OIL REFINERY FURNACE - A control system for performing a global-decoke of a tube furnace comprising a plurality of passes. | 09-25-2008 |
| 20080288110 | Method And System For Determining The Feasibility Of An Automotive Exhaust Catalyst - This technology provides methods and systems for catalyst feasibility analysis and the optimal determination of automotive catalyst specifications utilizing, but not limited to, light-off performance, air-to-fuel ratio tolerance, and steady state emissions performance catalyst criteria. This technology additionally provides a catalyst feasibility index algorithm that includes various catalyst criteria inputs and provides for weighting factors to independently value each catalyst input. The technology further provides for the optimal determination of automotive catalyst specifications in order to reduce vehicle toxic exhaust emissions such as hydrocarbons (HC) and oxides of nitrogen (NO | 11-20-2008 |
| 20080288111 | METHOD AND APPARATUS FOR DETERMINATION OF COAGULANT INJECTION RATE IN WATER TREATMENT PROCESS - Provided are a method and an apparatus that enable rapid and automatic determination of the coagulant injection rate in a process of water treatment through coagulation and sedimentation. Using a coagulation analyzer comprising sample tanks | 11-20-2008 |
| 20080306631 | Adaptive Reductant Dosing And Emission Control Strategies - The present disclosure relates to a method or apparatus for controlling reductant dosing level introduced to a selective catalytic reduction device. The method or apparatus may determine available reductant and determine a distance to a source of reductant. This may be followed by adjusting a reductant dosing level based upon the available reductant and the distance to the reductant source. The apparatus may be installed in a vehicle and may also regulate in-cylinder emission control variables to reduce NOx emissions. | 12-11-2008 |
| 20090012649 | OIL SAND PROCESSING APPARATUS CONTROL SYSTEM AND METHOD - A control system for an oil sand processing apparatus and a method for controlling the apparatus. The apparatus includes a rotatable drum, an oil sand feed mechanism, a drive mechanism for rotating the drum, a first drum support and a second drum support. The control system includes a first drum load sensor associated with the first drum support for sensing a first drum load, a second drum load sensor associated with the second drum support for sensing a second drum load and an oil sand feedrate sensor associated with the oil sand feed mechanism for sensing a feedrate of the oil sand feed mechanism. A controller is provided for controlling a rotation speed of the drum and a feedrate of the oil sand feed mechanism in response to input data from the first drum load sensor, the second drum load sensor and the oil sand feedrate sensor. | 01-08-2009 |
| 20090082906 | SYSTEM AND METHOD FOR PROVIDING AQUEOUS STREAM PURIFICATION SERVICES - A system and method are disclosed for providing aqueous stream purification services. The system includes at least one separation unit. Each separation unit may include a mechanical vapor recompression separator, a steam stripper, and a secondary recovery heat exchanger. The system for wastewater purification may receive water from a waste water storage, purify the water, and return the purified water to a purified water storage. The system may include a controller. The controller may include an operating conditions module configured to interpret at least one operating condition. Operating conditions may be waste fluid stream impurity concentrations, waste fluid stream flow rates, steam inlet temperatures, recirculation stream flow rates corresponding to the at least one separation unit, recirculation stream temperatures corresponding to the at least one separation unit, purified product stream flow rates, purified product stream impurity concentrations, and/or purge stream concentrations corresponding to the at least one separation unit. | 03-26-2009 |
| 20090132089 | SYSTEM, METHOD, AND APPARATUS FOR END-TO-END CONTROL OF WATER QUALITY - A method of providing end-to-end water quality control from a water system operator to a point of delivery proximate a consumer, which may be at the point of entry, and/or between the point of entry and point of use, and/or at the point of use. The method includes treating the water and delivering the water to the consumer at the point of delivery, filtering/purifying the water at the point of delivery, monitoring water quality at the point of delivery, and reporting water quality at the point of delivery to the water system operator over a network. | 05-21-2009 |
| 20100100242 | SYSTEM, METHOD, AND APPARATUS FOR END-TO-END CONTROL OF WATER QUALITY - A method of providing end-to-end water quality control from a water system operator to a point of delivery proximate a consumer, which may be at the point of entry, and/or between the point of entry and point of use, and/or at the point of use. The method includes treating the water and delivering the water to the consumer at the point of delivery, filtering/purifying the water at the point of delivery, monitoring water quality at the point of delivery, and reporting water quality at the point of delivery to the water system operator over a network. | 04-22-2010 |
| 20100145523 | Overheat Detection System - According to one embodiment of the invention, a method for preventing the failure of a system, which includes one or more pipes, or one or more cooling jackets, or one or more fluid cooled system components carrying a fluid, involves detecting one or more pressure levels of the fluid in the one or more pipes at one or more points, then comparing the detected pressure levels to a corresponding one or more predetermined limitation values. If the detected pressure levels exceed the corresponding limitation values, a shut-down signal is generated. The shut-down signal triggers the adjusting of one or more systems responsible for causing thermal variations of the fluid, preventing the system from failing while allowing the system to continue operation shortly thereafter. | 06-10-2010 |
| 20100191377 | INFILTRATION/INFLOW CONTROL FOR MEMBRANE BIOREACTOR - A wastewater treatment system comprising: a first treatment zone ( | 07-29-2010 |
| 20100198407 | Air Demand Feedback Control Systems And Methods For Sulfur Recovery Units - A Claus plant with multiple parallel thermal stages that provide a combined effluent to downstream catalytic stages includes a controller that allows independent and individual control for each of the thermal stages as a function of measured chemical composition of the thermal stage effluents and catalytic stage effluent. | 08-05-2010 |
| 20100222928 | WATER SOFTENER - Disclosed is a water softener, which is operable in a soft water mode in which cold/hot raw water is changed into cold/hot soft water using an ion exchange resin, a running water mode in which cold/hot running water as the cold/hot raw water is discharged, a regeneration mode in which regenerated water is generated by a regeneration material and regeneration waste water generated in regeneration of the ion exchange resin is discharged, and a control mode in which supply of cold/hot raw water is controlled. The water softener comprises: a tank part comprising first and second soft water tanks filled with the ion exchange resin and a regeneration tank connected to the first and second soft water tanks and filled with the regeneration material; and a switch valve part comprising a first valve assembly connected to the first and second soft water tanks and the regeneration tank, first and second raw water supply pipelines to which the cold/hot raw water is supplied being connected to the first valve assembly, and a second valve assembly connected to the first and second soft water tanks and the first valve assembly, a discharge pipeline from which the cold/hot soft water and the cold/hot running water are discharged and a regeneration waste water pipeline from which the regeneration waste water is discharged being connected to the second valve assembly. The water softener has four special modes in addition to the above four basic modes. With this configuration, users can use and manage the water softener at their most convenience. | 09-02-2010 |
| 20100292844 | SELF-CONTAINED PORTABLE MULTI-MODE WATER TREATMENT SYSTEM AND METHODS - An automated water treatment system and methods for treating raw water to produce potable water are disclosed. The system is a self-contained portable water treatment system having several selectable treatment subsystems and a controller which automatically selects and controls the mode of operation from a transient, normal or backwashing mode, automatically controls the flow of water through a treatment path based upon the selected mode of operation and the measured water quality characteristics of the water at selected locations, automatically determines, based upon the selected mode of operation and the water quality parameter measurements, which of the plurality of the selectable subsystems is needed to produce potable water at the output; and automatically direct the flow of water through a treatment path through the system to bypass the water treatment subsystems and elements that are not needed to produce potable water. The system is configured to fit inside a standard-sized commercial shipping container for transport and during operation. | 11-18-2010 |
| 20100305759 | Verification And Control Device And Method For At Least One Water Purification System - The verification and control method for at least one water purification system comprises: a step of supplying, by a server embedded with said water purification system, an editing interface comprising a zone for selecting items of exploitation information representing physical quantities associated with the water purification system, a step of selecting, via said first remote browser, at least one said item of exploitation information to constitute at least one exploitation interface page, a step of sending a request to access a said exploitation page, by said second remote browser, to said server, a step of collecting the value of each physical quantity represented by a selected item of information to constitute said page, and a step of supplying, by said server, said page comprising each said collected value. | 12-02-2010 |
| 20110046787 | WATER SEPARATION METHOD AND APPARATUS - A system for treating fractionated water from an oil and gas well. The system comprising a filter system, a diffusive membrane system, a plurality of membrane sensors, and at least one membrane controller. The filter system is fluidly connected to the diffusive membrane system, wherein the filter system comprises a plurality of straining filter banks. The diffusive membrane system comprises a plurality of membrane banks each having an inlet and an outlet. The plurality of membrane sensors are positioned at the outlet of each of the plurality of membrane banks, and the plurality of membrane sensors are configured to detect the total dissolved solids level at the outlet of each of the plurality of membrane banks. The at least one membrane controller is programmed to selectively disengage and isolate at least one of the plurality of membrane banks from fluid communication with the system upon detection if the total dissolved solids level at the outlet of one or more of the membrane banks is above about 20,000 ppm. A method is also provided. | 02-24-2011 |
| 20110060465 | Control apparatus of ammonia loading amount for SCR system and control method for the same - A control method of ammonia loading amount for SCR system controls ammonia loading amount according to temperature difference along length direction of a SCR catalyst. The control method includes receiving data from sensors disposed forward and rearward of a SCR catalyst, and dividing SCR catalyst into a plurality of blocks according to temperatures of an inlet and outlet of the SCR catalyst, wherein the blocks have each temperature ranges, calculating required ammonia amount of each block of the SCR catalyst, calculating total required ammonia amount of the SCR catalyst by adding required ammonia amount of each block of the SCR catalyst and controlling the ammonia loading amount for SCR system. | 03-10-2011 |
| 20110125326 | USING RAMAN SPECTROSCPPY TO CONTROL CARBONATE/BICARBONATE CONCENTRATIONS - An apparatus and method of controlling carbonate/bicarbonate concentrations and ratio in a chemical process having the steps of flowing a carbonate/bicarbonate solution through a measurement cell ( | 05-26-2011 |
| 20110137465 | Portable Water Treatment Method - A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation. | 06-09-2011 |
| 20110264268 | Electrochemical Control Systems And Methods - Methods for reducing response time of membrane based electrochemical cells. A probe correction factor is calculated based on a percent rate of change in probe signal with time. A staged correction may be applied such that as signal change gets smaller, the effect of the compensation is reduced to prevent over shoot on the calculated residual. Control systems and techniques can regulate or control operations of a water treatment system. | 10-27-2011 |
| 20120022694 | CHEMICAL AND PHYSICAL DEGRADATION SENSING IN OIL - A sensing scheme comprising determining the chemical degradation and physical degradation in oil using variation in transmission behavior of oil for multi-wavelength electromagnetic radiation, and separating the contributory effect of physical degradation from the chemical degradation is disclosed. Further sensor designs employing the said scheme are disclosed. | 01-26-2012 |
| 20120041596 | EXHAUST DIAGNOSTIC SYSTEMS AND METHODS WITH SCR CONVERSION EFFICIENCY MONITOR DISABLING - A diagnostic control module includes a temperature gradient module. The temperature gradient module determines a temperature gradient across a selective catalytic reduction (SCR) catalyst of an exhaust system of an engine based on a plurality of temperature signals. A calibration module determines a weighted average based on the plurality of temperature signals. A SCR efficiency control module disables conversion efficiency monitoring based on the temperature gradient and the weighted average. | 02-16-2012 |
| 20120245737 | REAL-TIME CONTROL METHOD AND GAS PURIFICATION SYSTEM FOR SOLVENT BASED CAPTURE SYSTEMS - Gas purification systems generally include an analyzing unit including a plurality of sensors and/or probes for continuously analyzing a solvent cyclic capacity in real time, the plurality of sensors and/or probes in fluid communication with rich amine and lean amine solution carrying conduits and the water wash conduits; and a system control unit configured to receive outputs from the analyzing unit for monitoring and controlling the solvent cyclic capacity in real time. Also disclosed are computer implemented methods for providing the real time control. | 09-27-2012 |
| 20160059166 | REMOVAL OF HAB-PRODUCED TOXINS FROM BODIES OF WATER - One or more brevetoxins or other toxins produced by red tides or other harmful algal blooms (HABs) are removed from a body of water by contacting an aqueous phase containing water, algae and one or more HAB-produced toxins with an organic phase, extracting the one or more toxins into the organic phase, and separating the organic phase enriched in the one or more toxins from the aqueous phase depleted in the one or more toxins. In some embodiments, the organic phase is comprised of vegetable oil, mineral oil, or other suitable oil. In some embodiments, an annular centrifugal contactor is used to accomplish the contacting, extracting, and separating. In some embodiments, the toxin-depleted aqueous phase is pumped back into the source of the aqueous phase, and the toxin-enriched organic phase is recirculated until a predetermined threshold concentration of the one or more toxins is met. | 03-03-2016 |
| 20160082390 | SENSOR CONTROL METHOD AND SENSOR CONTROL APPARATUS - In a multi-gas sensor control apparatus | 03-24-2016 |
| 20160122201 | DETERMINATION OF WATER TREATMENT PARAMETERS BASED ON ABSORBANCE AND FLUORENCE - A computer-implemented method for determining a water treatment parameter includes receiving, by a computer, measurements of a fluorescence emission spectrum of a water sample including a first peak emission wavelength and at least a second peak emission wavelength, emitted in response to an excitation wavelength, receiving, by the computer, an absorbance measurement obtained at the excitation wavelength of the water sample, determining, using the computer, a ratio of the measurements at either the second peak emission wavelength, or a sum of measurements at a plurality of peak emission wavelengths including at least the first peak emission wavelength and the second peak emission wavelength, to the first peak emission wavelength, and calculating, using the computer, a value for the water treatment parameter based on a combination of at least the ratio and the absorbance measurement. | 05-05-2016 |
| 20160152489 | Method for Controlling a Process | 06-02-2016 |
| 700272000 | Of fuel | 10 |
| 20090222136 | CONTROL AND OPTIMIZATION SYSTEM - A system for optimizing a power plant includes a chemical loop having an input for receiving an input parameter ( | 09-03-2009 |
| 20100152900 | Optimizing refinery hydrogen gas supply, distribution and consumption in real time - The present invention is directed to innovative and unique mathematical models that capture key constraints, process kinetics and control structures such that a wide envelope of hydrogen gas and associated light gas supply, distribution and use can be modeled. The present invention is also directed to a real time optimization (RTO) computer application for effective optimization of hydrogen and associated light gas supply and distribution and, thereby, consumption, in a refinery that employs said models and solves an objective function, as well as to a method and refinery using the same. The objective function can be an economic objective function such as the minimization of cost for hydrogen supply and distribution or the maximization of profit based on a valuation of products made by hydrogen consumers in the hydrogen system minus the corresponding cost of the hydrogen supply and distribution. | 06-17-2010 |
| 20100204831 | PROCESS FOR MONITORING AND REGULATION OF AN INDUSTRIAL UNIT THAT EMPLOYS A CLOSED-LOOP IDENTIFICATION PHASE FOR THE OPERATING PARAMETERS OF SAID UNIT - This invention describes a new process for monitoring and regulation of an industrial unit that comprises a closed-loop identification phase for the parameters of a model of said industrial unit, implemented in a multi-variable, predictive linear monitor, whereby said identification phase is implemented in a closed loop, which makes it possible to minimize the substandard production of said unit. | 08-12-2010 |
| 20110098862 | Multi-stage processes and control thereof - A method is provided for controlling a multi-stage process. The process comprises multiple first stage processes for producing an intermediate product from a feed, and multiple further stage processes for producing an end-product from the intermediate products. The first stage processes comprise multiple intermediate processes and the further stage processes comprise multiple end processes for producing the end product. An intermediate controller controls the first stage processes in response to one or more product properties of the end product EP and a further controller FC controls the further stage processes in response to the product properties of the intermediate product. The multi-stage process further comprises the step of assigning process values to each of the end processes and the intermediate processes. The intermediate controller IC controls operation of the intermediate processes to optimize the overall process value for producing the end product. The end controller FC responds to the actions of intermediate controller IC to optimize the overall process value. | 04-28-2011 |
| 20110257789 | ACTIVE CLOUD POINT CONTROLLER FOR REFINING APPLICATIONS AND RELATED METHOD - A method includes receiving a measurement associated with a cloud point of a biofuel being produced in a refining system. The method also includes determining how to adjust the refining system based on a desired cloud point of the biofuel and the measurement associated with the cloud point. The method further includes outputting a control signal to adjust the refining system based on the determination. Determining how to adjust the refining system could include determining how to adjust an inlet temperature of a reactor in the refining system. The reactor could represent an isomerization reactor, and a heater could heat material entering the isomerization reactor. Determining how to adjust the inlet temperature of the reactor could include determining how to adjust operation of the heater. A model predictive control (MPC) technique could be used to determine how to adjust the inlet temperature of the isomerization reactor. | 10-20-2011 |
| 20130024026 | ADVISORY CONTROLS OF DESALTER SYSTEM - The present invention concerns a method of providing advisory controls for a desalter system. The method allows a user to continuously monitor performance of the desalter system, to continuously monitor position of the emulsion band (or rag layer), to control the emulsion band using demulsifiers, and to recommend to users how to maintain optimal pressure drop at the mix valve of the desalter system. This is achieved by using a first principles based model combined with an ultra-sound sensor. The ultra-sound sensor measures the position, quality and size of the emulsion band. The first principles based model takes into account the geometry of the desalter system, physical properties of the crude oil and water, as well as the operating conditions. Thus, the method provides users with sensing of an emulsion layer through ultrasound measurements and also gives recommendations on appropriate corrective actions to be initiated during upsets. | 01-24-2013 |
| 20130110291 | NOVEL SYSTEMS AND METHODS FOR PRODUCING BIOFUEL FROM ONE OR MORE VALUES OF PROCESS PARAMETERS | 05-02-2013 |
| 20130226348 | SYSTEM AND METHOD FOR CONTROL PERFORMANCE MONITORING - A method for monitoring a control of a parameter of one or more devices or systems in an oil or gas production site includes receiving process data, the process data being a result of the control of the parameter of the one or more devices or systems in the production site; smoothing the process data using a polynomial filter while preserving features of the process data to obtain smoothed data; and applying a pattern recognition algorithm to the smoothed data to determine whether there is a malfunction condition in the one or more devices or systems. | 08-29-2013 |
| 20140214210 | ADVISORY CONTROLS OF DESALTER SYSTEM - The present invention concerns a method of providing advisory controls for a desalter system. The method allows a user to continuously monitor performance of the desalter system, to continuously monitor position of the emulsion band (or rag layer), to control the emulsion band using demulsifiers, and to recommend to users how to maintain optimal pressure drop at the mix valve of the desalter system. This is achieved by using a first principles based model combined with an ultra-sound sensor. The ultra-sound sensor measures the position, quality and size of the emulsion band. The first principles based model takes into account the geometry of the desalter system, physical properties of the crude oil and water, as well as the operating conditions. Thus, the method provides users with sensing of an emulsion layer through ultrasound measurements and also gives recommendations on appropriate corrective actions to be initiated during upsets. | 07-31-2014 |
| 20150105909 | CHEMICAL INJECTION SYSTEM - A chemical injection system includes a pump in fluid communication with a chemical reservoir and a pipeline; a motor coupled to the pump and adapted to drive the pump to transfer a chemical fluid from the reservoir to the pipeline; a motor controller electrically coupled to a power module and the motor and adapted to adjust a rotational speed of the motor; and a central controller communicably coupled to the motor controller and a remote computing device. The controller includes a translator adapted to receive a signal from the remote computing device in a first communication protocol and translate the signal from the remote computing device to a command in a second communication protocol distinct from the first communication protocol, where the command is operable to adjust the motor controller to adjust the rotational speed of the motor. | 04-16-2015 |
