Patent application number | Description | Published |
20120152362 | DEVICES AND METHODS FOR REDUCING OXYGEN INFILTRATION - Configurations and methods of reducing oxygen infiltration into an oxygen-sensitive process environment of a plant are presented in which carbon dioxide is isolated from a process stream within the plant, and in which a small portion of the isolated carbon dioxide is used in the plant as a transport gas or a seal gas for devices that are known to exhibit air in-leaking. | 06-21-2012 |
20130125752 | Down-Flow Direct Contact Cooler - Systems and methods are contemplated for down-flow cooling of a feed gas. Contemplated systems can include a housing having an inlet conduit disposed within an upper portion and configured to receive a first stream. First and second stages can be disposed within the housing, with the first stage disposed upstream of the second stage and having a first cooling stream, and the second stage having a second cooling stream that is colder than the first cooling stream. The housing can be configured such that the first stream is cooled by down-flow heat exchange with the first and second cooling streams to produce a conditioned stream depleted of at least a portion of water condensed from the feed gas. | 05-23-2013 |
20130125754 | SYSTEMS AND METHODS FOR IMPROVED BAGHOUSE FILTERS - A headgear assembly for a baghouse filter can include a headgear configured to allow for concentric arrangement of first and second filters coupled thereto, where at least one of the first filter, second filter, and headgear can include an opening through which accumulated particulate from the second filter can pass. The headgear assembly can also include a cleaning assembly configured to facilitate cleaning of at least one of the first and second filters. Methods of facilitating on-line cleaning of a baghouse filter are also described wherein an exhaust stream is passed through concentrically arranged first and second filters to produce a filtered stream. At least one of the first and second filters can be cleaned using a cleaning assembly to remove accumulated particulate, which can pass through an opening in at least one of the first filter, the second filter, and the headgear. | 05-23-2013 |
20130129588 | Multi-Purpose Absorber - Systems and methods directed to cleaning a flue gas are described, in which a column housing can be configured to receive a feed stream, and includes an absorber configured to produce a clean stream that is substantially depleted of at least one of SO | 05-23-2013 |
20130139696 | MULTI-DIRECTIONAL OUTLET TRANSITION AND HOOD - Post-combustion conditioning systems are described that include a flue gas conditioning device configured to condition an exhaust stream to produce a conditioned stream. First and second outlet ducts can be fluidly coupled to, and substantially supported by, the flue gas conditioning device. This advantageously can eliminate costly ductwork, reduce the space required, and reduce the pressure drop of the system. The first outlet duct can fluidly couple the flue gas conditioning device to an exhaust duct, such that the conditioned stream can flow from the first conditioning device via the first outlet duct. | 06-06-2013 |
20130309156 | START UP CATALYST HEATING - Systems and methods are described for reducing the start-up time of flue gas conditioning processes. Such processes can include a gas removal unit configured to selectively remove a reactive gas from a flue gas stream using a catalyst and reagent to produce a scrubbed stream that is substantially depleted of the reactive gas. A heating device can advantageously be used upstream of the gas removal unit to thereby preheat the catalyst to an operational temperature and thereby reduce the start-up time of the process. | 11-21-2013 |
20130312602 | FLUE GAS DIFFUSER OBJECTS - A diffuser object for a flue gas desulfurization (FGD) absorber is described. The diffuser object is placed in a high flue gas velocity zone inside the absorber in order to better distribute the flue gas and improve absorption efficiency. A method of improving absorption efficiency in a FGD absorber is also described. The method involves identifying high and low velocity zones within the absorber and positioning diffuser objects within the high velocity zones in a non-packed manner. The placement of the diffuser objects and configuration of the objects are calculated to equalize flow rates within the absorber. | 11-28-2013 |
20140026755 | STEAM EFFICIENCY WITH NON DEPLETIVE CONDENSING AND ADIABATIC SOLVENT HEATING - A lean solvent is produced from a CO | 01-30-2014 |
20140124068 | TANK OVERFLOW PIPE SYSTEM - Overflow systems are described for non-atmospheric pressure, slurry tank, which can reduce stagnation of excess flurry in an overflow pipe. In such systems, stagnation of the excess slurry in the overflow pipe is reduced via a recirculation conduit that allows for recirculation of at least a portion of the slurry from the tank. Moreover, an air capture unit collects a portion of an oxidation air from the tank. As a result, the fluid in the overflow system is representative of the aerated slurry within the tank. | 05-08-2014 |
20140140914 | COST CONTROL FOR CO2 CAPTURE - A flue gas treatment process and system is presented. The system includes a fan capable of moving a flue gas through a flue gas desulfurizer, direct contact cooler, and CO | 05-22-2014 |
20140144594 | PROCESS FOR CHLORIDE REDUCTION - Systems and methods are described for removing chlorides from a SOx-containing flue gas upstream of a flue gas desulfurization system. A wet sprayer can be configured to contact at least a portion of the SOx-containing flue gas with a first solution to produce (1) a SOx-containing treated flue gas that is substantially depleted of chlorides, and (2) a chloride solution product. The treated flue gas can then be fed into a flue gas desulfurization system, which allows the downstream components to comprise less-expensive materials because of the depletion of chlorides in the treated flue gas. | 05-29-2014 |
20140165888 | SIMULTANEOUS TREATMENT OF FLUE GAS WITH SOx ABSORBENT REAGENT AND NOx REDUCING AGENT - A system and method for treating flue gas that results from a combustion process is described. The method and system includes injecting an SOx absorbent reagent into the flue gas pathway at a point upstream of a selective catalytic reduction (SCR) reactor exit and downstream of a boiler exit. The method and system may also include injecting a NOx reducing agent simultaneously with the SOx absorbent reagent, either via the same injection system or via a second injection system located nearby the SOx absorbent reagent injection system. Injection of the SOx at a point upstream of the SCR reactor exit simplifies the injection systems, gas distribution systems, and physical and/or computational fluid dynamics modeling. | 06-19-2014 |
20140216255 | PHASED ENERGY ACCUMULATION BY KEEPING PRODUCTION FROM OTHERWISE WASTED ENERGY RESOURCES - Systems and methods are described for maximizing energy available for sale from a power plant during a peak demand period. An acid gas removal unit can include a lean solvent storage tank, a rich solvent storage tank, a stripper, and an acid gas compressor, which are fluidly coupled to an absorber to allow formation of rich solvent from lean solvent in the absorber. Stripper and compressor duties can be reduced or eliminated as a function of an increased power production. Rich solvent produced during the peak demand period can be stored in the rich solvent storage tank, and the lean solvent storage tank can store an amount of lean solvent sufficient to produce the rich solvent during the peak demand period. | 08-07-2014 |
20140234788 | THERMALLY CONTROLLED COMBUSTION SYSTEM - Contemplated configurations and methods are presented for effectively controlling the temperature in an oxy-fuel combustion system. Contemplated systems preferably introduce water independent of the fuel and oxygen into the combustion chamber. Water is injected through one or more nozzles, wherein water is atomized or sprayed, creating boundary layer cool zones in a boiler system and wherein water is recovered. | 08-21-2014 |
20140339815 | Duct Assemblies With Internally Bolted Expansion Joint - A contiguous duct assembly has first and second ducts that share at least one common wall element. An expansion joint is formed at the end of the contiguous duct assembly using a connector element that extends with respective portions into the internal spaces of the first and second ducts. First and second expansion fabrics are coupled to the respective portions from the inside of the ducts using fasteners that are accessible from and disposed within the internal space of the first and second ducts. | 11-20-2014 |