| Patent application number | Description | Published |
|---|
| 20090032438 | Process for Recovering Power from FCC Product - Disclosed is a process for recovering power from an FCC product. The dry gas is combusted and combined with FCC regenerator flue gas to raise the power recovery capability of the flue gas. The flue gas can be used to generate electrical power or steam. Alternatively or additionally, dry gas from an FCC product stream is separated and delivered to an expander to recover power before combustion. | 02-05-2009 |
| 20090032439 | Process for Heating Regeneration Gas - Disclosed is a process for combusting dry gas to heat the air supplied to an FCC regenerator to increase its temperature and minimize production of undesirable combustion products. Preferably, the dry gas is a selected FCC product gas. Alternatively or additionally, dry gas from an FCC product stream is separated and delivered to an expander to recover power before combustion. | 02-05-2009 |
| 20090035191 | Apparatus for Heating Regeneration Gas - Disclosed is an apparatus for combusting dry gas to heat the air fed to an FCC regenerator to increase its temperature and minimize production of undesirable combustion products. Preferably, the dry gas is a selected FCC product gas. Alternatively or additionally, dry gas from an FCC product stream is separated and delivered to an expander to recover power before combustion. | 02-05-2009 |
| 20090035193 | Apparatus for Recovering Power from FCC Product - Disclosed is an apparatus for recovering power from an FCC product. The dry gas is combusted and combined with FCC regenerator flue gas to raise the power recovery capability of the flue gas. The flue gas can be used to generate electrical power or steam. Alternatively or additionally, dry gas from an FCC product stream is separated and delivered to an expander to recover power before combustion. | 02-05-2009 |
| 20100224475 | ZONE OR SYSTEM FOR PROVIDING ONE OR MORE STREAMS - One exemplary embodiment can be a separation zone for separating a plurality of naphtha components. The separation zone can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The separation zone may provide at least four product streams. | 09-09-2010 |
| 20100224536 | PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN - One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser. | 09-09-2010 |
| 20100236982 | Process for Feed Preheating with Flue Gas Cooler - Hydrocarbon feed to a catalytic reactor can be heat exchanged with flue gas from a catalyst regenerator. This innovation enables recovery of more energy from flue gas thus resulting in a lower flue gas discharge temperature. As a result, other hot hydrocarbon streams conventionally used to preheat hydrocarbon feed can now be used to generate more high pressure steam. | 09-23-2010 |
| 20100239475 | Apparatus for Feed Preheating with Flue Gas Cooler - Hydrocarbon feed to a catalytic reactor can be heat exchanged with flue gas from a catalyst regenerator. This innovation enables recovery of more energy from flue gas thus resulting in a lower flue gas discharge temperature. As a result, other hot hydrocarbon streams conventionally used to preheat hydrocarbon feed can now be used to generate more high pressure steam. | 09-23-2010 |
| 20110108457 | PROCESS FOR RECOVERING FCC PRODUCT - A process is disclosed for recovering product from catalytically converted product streams. Gaseous unstabilized naphtha from an overhead receiver from a main fractionation column is compressed in a compressor. Liquid unstabilized naphtha from the overhead receiver and liquid naphtha fraction from the compressor are sent to a naphtha splitter column upstream of a primary absorber. Consequently, less naphtha is circulated in the gas recovery system. | 05-12-2011 |
| 20110110829 | APPARATUS FOR RECOVERING FCC PRODUCT - An apparatus is disclosed for recovering product from catalytically converted product streams. Gaseous unstabilized naphtha from an overhead receiver from a main fractionation column is compressed in a compressor. Liquid unstabilized naphtha from the overhead receiver and liquid naphtha fraction from the compressor are sent to a naphtha splitter column upstream of a primary absorber. Consequently, less naphtha is circulated in the gas recovery system. | 05-12-2011 |
| 20120031096 | Low Grade Heat Recovery from Process Streams for Power Generation - Methods are described for generating electrical power from low grade heat sources from refining and petrochemical processes, including overhead vapors from vapor-liquid contacting apparatuses such as distillation columns, absorbers, strippers, quenching towers, scrubbers, etc. In many cases, these overhead vapors exit the apparatuses at a temperature from about 90° C. (194° F.) to about 175° C. (347° F.). Rather than rejecting the low temperature heat contained in these vapors to cooling air and/or cooling water, the vapors may instead be used to evaporate an organic working fluid. The vapors of the working fluid may then be sent to a turbine to drive a generator or other load. | 02-09-2012 |
| 20120085682 | PROCESS AND SYSTEM FOR HEATING OR COOLING STREAMS FOR A DIVIDED DISTILLATION COLUMN - One exemplary embodiment can be a system for separating a plurality of naphtha components. The system can include a column, an overhead condenser, and a side condenser. Generally, the column includes a dividing imperforate wall with one surface facing a feed and another surface facing at least one side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Typically, the overhead condenser receives an overhead stream including a light naphtha from the column. Usually, a side condenser receives a process stream from the column and returns the stream to the column to facilitate separation. A cooling stream may pass through the overhead condenser and then the side condenser. | 04-12-2012 |
| 20120138509 | PROCESS FOR RECOVERING CATALYTIC PRODUCT - A process is disclosed for recovering product from catalytically converted product streams. An integrated debutanizer column provides an LPG stream, a light naphtha stream and a heavy naphtha stream. The integrated debutanizer column may comprise a dividing wall column. The light naphtha stream may be used as an absorbent for a primary absorber column which provides advantageous operation. | 06-07-2012 |
| 20120141333 | APPARATUS FOR RECOVERING CATALYTIC PRODUCT - An apparatus is disclosed for recovering product from catalytically converted product streams. An integrated debutanizer column provides an LPG stream, a light naphtha stream and a heavy naphtha stream. The integrated debutanizer column may comprise a dividing wall column. The light naphtha stream may be used as an absorbent for a primary absorber column which provides advantageous operation. | 06-07-2012 |
| 20120298560 | PROCESS FOR PROVIDING ONE OR MORE STREAMS - One exemplary embodiment can be a process for separating a plurality of naphtha components. The process can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The process may provide at least four product streams. | 11-29-2012 |
| 20130043161 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN ONE VESSEL - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper are contained in the same vessel. A barrier prevents material from the hot stripper from entering into the cold stripper. | 02-21-2013 |
| 20130043162 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS AND COMMON OVERHEAD RECOVERY - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper utilize a common overhead recovery apparatus. | 02-21-2013 |
| 20130045140 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. Only the hot hydroprocessing effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings. | 02-21-2013 |
| 20130045141 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS IN ONE VESSEL - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper are contained in the same vessel. A barrier prevents material from the hot stripper from entering into the cold stripper. | 02-21-2013 |
| 20130045142 | APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS AND COMMON OVERHEAD RECOVERY - An apparatus is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper utilize a common overhead recovery apparatus. | 02-21-2013 |
| 20130046125 | PROCESS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH TWO STRIPPERS - A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. Only the hot hydroprocessing effluent is heated in a fired heater prior to product fractionation, resulting in substantial operating and capital savings. | 02-21-2013 |
| 20130192298 | DISTILLATION COLUMN HEAT PUMP WITH COMPRESSOR INLET SUPERHEATER - Light naphtha distillation columns with heat pumps and methods of operating them are described. The overhead stream is compressed to increase temperature so that it can be used both to heat the reboiler and to superheat the overhead stream before it enters the heat pump compressor. | 08-01-2013 |
| 20130227986 | DISTILLATION COLUMN HEAT PUMP WITH COMPRESSOR INLET SUPERHEATER - Hydrocarbon distillation columns with heat pumps and methods of operating them are described. The overhead stream is compressed to increase temperature so that it can be used both to heat the reboiler and to superheat the overhead stream before it enters the heat pump compressor. | 09-05-2013 |
| 20140026614 | METHOD FOR MEASUREMENT AND CALCULATION OF DEW POINT FOR FRACTIONATION COLUMN OVERHEADS - Methods for controlling the operation of fractionation columns to avoid column flooding are described. The methods use mass flow meters to measure the mass flow rates of the receiver vapor, and the stripper hydrocarbon liquid or stripper reflux and stripper net overhead. The water from the receiver can be measured with either a volumetric flow meter or a mass flow meter. A computer can be used to determine the dew point from the mass flows, and an alarm can be triggered and/or a process change can be made if the difference between the calculated dew point and the temperature of the overhead vapor stream is less than a predetermined amount. | 01-30-2014 |
| 20140027266 | APPARATUS FOR MEASUREMENT AND CALCULATION OF DEW POINT FOR FRACTIONATION COLUMN OVERHEADS - Apparatus for controlling the operation of fractionation columns to avoid column flooding is described. The apparatus uses mass flow meters to measure the mass flow rates of the receiver vapor, and the stripper hydrocarbon liquid stream or the stripper reflux and the stripper net overhead liquid. The water from the receiver can be measured with either a volumetric flow meter or a mass flow meter. The apparatus also includes at least one computer in communication with a molecular weight analyzer or specific gravity analyzer; an overhead vapor line pressure gauge; an overhead vapor line temperature gauge; a hydrocarbon liquid outlet line temperature gauge; the stripper hydrocarbon stream mass flow meter, or the stripper reflux hydrocarbon liquid mass flow meter and the stripper net overhead hydrocarbon liquid mass flow meter; the vapor mass flow meter; and the water flow meter. | 01-30-2014 |
| 20140048447 | HYDROTREATING PROCESS AND APPARATUS RELATING THERETO - One exemplary embodiment can be a process for treating a hydroprocessing fraction. The process can include obtaining a bottom stream from a fractionation zone, and passing at least a portion of the bottom stream to a film generating evaporator zone for separating a first stream containing less heavy polynuclear aromatic compounds than a second stream. | 02-20-2014 |
| 20140171704 | METHODS AND APPARATUSES FOR PRODUCING ETHYLENE AND PROPYLENE FROM NAPHTHA FEEDSTOCK - Method and apparatuses for producing ethylene and propylene from naphtha feedstock are provided. The naphtha feedstock includes a first component consisting of hydrocarbons that have less than or equal to five carbon atoms and a second component. The second component consists of at least one of an isoparaffin component having at least six carbon atoms, a naphthene component having at least six carbon atoms, or an aromatic component having at least six carbon atoms. The naphtha feedstock is separated to produce a first separation stream including the first component and a second separation stream including the second component. At least a portion of the second component from the second separation stream is converted to normal paraffins. Normal paraffins from conversion of the second component and at least a portion of the first component or derivative thereof from the first separation stream are steam cracked to produce ethylene and propylene. | 06-19-2014 |
| 20140257010 | ENERGY CONSERVATION IN HEAVY-HYDROCARBON DISTILLATION - An aromatics complex producing one or more xylene isomers offers a large number of opportunities to conserve energy by heat exchange within the complex. One previously unrecognized opportunity is through providing two parallel distillation columns operating at different pressures to separate C | 09-11-2014 |
| 20140262938 | PROCESS AND APPARATUS FOR RECOVERING AND BLENDING HYDROPROCESSED HYDROCARBONS AND COMPOSITION - A process and apparatus provides for blending a heavy naphtha stream with a diesel stream to increase the yield of diesel. The diesel stream is recovered separately from a kerosene stream to leave the kerosene stream undiminished. The blended diesel provides a valuable composition. | 09-18-2014 |
| 20140262946 | PROCESS AND APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH SINGLE PRODUCT FRACTIONATION COLUMN - A hot stripped hydroprocessed stream from a stripper column may be sent directly to a vacuum fractionation column instead of being first processed in an atmospheric fractionation column. If a separate warm stripper column is used, both the warm stripped stream and a hot stripped stream may be fractionated in the same fractionation column, particularly a vacuum fractionation column. | 09-18-2014 |
| 20140262948 | PROCESS AND APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH STRIPPER COLUMNS - Two or three strippers are used to strip three hydroprocessed effluent streams, perhaps from a slurry hydrocracking reactor, separated by temperature instead of a single stripper to preserve separations previously made and conserving energy and reducing vessel size. A cold stripped stream may be taken as a diesel blending stock without further fractionation. | 09-18-2014 |
| 20140262963 | PROCESS AND APPARATUS FOR RECOVERING AND BLENDING HYDROPROCESSED HYDROCARBONS AND COMPOSITION - A process and apparatus provides for blending a heavy naphtha stream with a diesel stream to increase the yield of diesel. The diesel stream is recovered separately from a kerosene stream to leave the kerosene stream undiminished. The blended diesel provides a valuable composition. | 09-18-2014 |
| 20140271395 | PROCESS AND APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH SINGLE PRODUCT FRACTIONATION COLUMN - A hot stripped hydroprocessed stream from a stripper column may be sent directly to a vacuum fractionation column instead of being first processed in an atmospheric fractionation column. If a separate warm stripper column is used, both the warm stripped stream and a hot stripped stream may be fractionated in the same fractionation column, particularly a vacuum fractionation column. | 09-18-2014 |
| 20140271396 | PROCESS AND APPARATUS FOR RECOVERING HYDROPROCESSED HYDROCARBONS WITH STRIPPER COLUMNS - Two or three strippers are used to strip three hydroprocessed effluent streams, perhaps from a slurry hydrocracking reactor, separated by temperature instead of a single stripper to preserve separations previously made and conserving energy and reducing vessel size. A cold stripped stream may be taken as a diesel blending stock without further fractionation. | 09-18-2014 |
| 20140271398 | PROCESS AND APPARATUS FOR RECOVERING AND BLENDING HYDROPROCESSED HYDROCARBONS AND COMPOSITION - A process and apparatus provides for blending a heavy naphtha stream with a diesel stream to increase the yield of diesel. The diesel stream is recovered separately from a kerosene stream to leave the kerosene stream undiminished. The blended diesel provides a valuable composition. | 09-18-2014 |
| 20140291205 | METHODS AND APPARATUSES FOR HEATING HYDROCARBON STREAMS FOR PROCESSING - Methods and apparatuses for processing hydrocarbon streams are provided. In an embodiment, a method for processing a hydrocarbon stream includes heating a feed stream in a convective bank. In the method, the feed stream is reacted in a first reaction zone to form a first effluent. The first effluent is heated in a first radiant cell that combusts fuel gas to heat the first effluent and forms a first exhaust gas. The method includes contacting the first exhaust gas with the convective bank to heat the feed stream. | 10-02-2014 |
| 20140323781 | APPARATUSES AND METHODS FOR REFORMING OF HYDROCARBONS - Embodiments of apparatuses and methods for reforming of hydrocarbons are provided herein. In one example, a method comprises burning fuel gas to form a hot flue gas and heat a reforming-zone feedstock that contains (C | 10-30-2014 |
| 20150041365 | HYDROTREATING PROCESS AND APPARATUS RELATING THERETO - One exemplary embodiment can be a process for treating a hydroprocessing fraction. The process can include obtaining a bottom stream from a fractionation zone, and passing at least a portion of the bottom stream to a film generating evaporator zone for separating a first stream containing less heavy polynuclear aromatic compounds than a second stream. | 02-12-2015 |
| 20150052940 | FRACTIONATION SYSTEM AND METHOD INCLUDING DEPROPANIZER COLUMN AND BOTTOMS STRIPPING COLUMN - Fractionation systems utilizing a rectifying column with a stripping column are described. The liquid from the rectifying column bottoms is sent to the first tray of the stripping column, while the overhead stream from the stripping column is sent to the bottom of the rectifying column. Processes for separating feed streams are also described. | 02-26-2015 |
| 20150052941 | FRACTIONATION SYSTEM HAVING RECTIFYING AND STRIPPING COLUMNS IN A SINGLE VESSEL WITH A UNIFORM DIAMETER - Fractionation systems utilizing a single rectifying column with a stripping column housed in the same vessel and having a uniform diameter are described. Methods of separating feed streams using the fractionation systems are also described. | 02-26-2015 |
