| Patent Number |
Title Of Patent |
Date Issued |
| 7303606 |
Oxy-fuel combustion process |
December 4, 2007 |
| Production of oxygen-enriched gas streams is disclosed herein. Air streams contact an oxygen-selective mixed conductor particularly a perovskite material whereby oxygen is retained or adsorbed on the perovskite and can be employed in a variety of processes such as in combusting a fuel ga |
| 7090826 |
Monolith based catalytic partial oxidation process for syngas production |
August 15, 2006 |
| An improved process for the catalytic partial oxidation of hydrocarbons to produce hydrogen and carbon monoxide and less than .about.2% carbon dioxide is disclosed. The process further permits the reaction to be initiated at room temperature, and utilizes a metal catalyst deposited on |
| 6783749 |
Gas recovery process |
August 31, 2004 |
| Improved method for recovering hydrogen and carbon monoxide from hydrocarbon conversion processes are disclosed. A monolith catalyst reactor means is utilized in treating the waste gas stream from the hydrocarbon conversion process to assist in recovering hydrogen and carbon monoxide |
| 6743400 |
Sparger configuration for fluidized bed hydrocarbon partial oxidation reactors |
June 1, 2004 |
| The present invention is directed to a sparger system provided for appropriately feeding reactant streams to fluidized bed reactors of hydrocarbon partial oxidation processes that are retrofitted to selectively recover and recycle unreacted hydrocarbons. As a result of the sparger sy |
| 5993517 |
Two stage pressure swing adsorption process |
November 30, 1999 |
| High purity carbon monoxide is separated from a gas stream containing carbon monoxide, carbon dioxide, methane, hydrogen and possibly other impurities by a two-stage pressure swing adsorption process carried out in a series of adsorption vessels containing adsorbent which adsorbs carbon |
| 5908804 |
Reduction of emissions from FCC regenerators |
June 1, 1999 |
| Coke is burned in the regenerator vessel of an FCC complex with a combustion medium consisting of a diluent gas, such as air, enriched with oxygen, The regenerator is operated in partial combustion mode and excess oxygen is introduced into the combustion zone of the regenerator. Emission |
| 5814208 |
Hydrocarbon catalytic cracking process |
September 29, 1998 |
| Hydrocarbon fluid catalytic cracking (FCC) plants are debottlenecked by subjecting part or all of the wet gas stream leaving the main fractionator overhead receiver to pressure swing adsorption to remove methane and hydrogen from this gas stream prior to its introduction into the wet gas |
| 5744687 |
Process for recovering alkenes from cracked hydrocarbon streams |
April 28, 1998 |
| A hydrocarbon stream is cracked to produce a hot gaseous stream which is compressed and cooled to condense almost all of the hydrocarbons contained in the stream. A noncondensed stream remaining after the condensation step, comprised predominantly of hydrogen and C.sub.1 to C.sub.3 h |
| 5726327 |
Process for the production of petrochemicals |
March 10, 1998 |
| Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with air in the presence of a suitable catalyst. The petrochemical product is removed from the product gas stream, and unreacted hydrocarbon in part or all of the remaining gas stream is recovered by subjecting the |
| 5693856 |
Production of terephthalic acid |
December 2, 1997 |
| Terephthalic acid is produced by reacting paraxylene with oxygen in a reactor having several vertical stages, the reaction taking place in the liquid phase using acetic acid as solvent and a cobalt-manganese-bromine complex catalyst. During the reaction, a carbon dioxide-containing gas |
| 5675052 |
Hydrocarbon alkylation process |
October 7, 1997 |
| A hydrocarbon stream is cracked to produce a hot gaseous stream which is compressed and cooled to condense almost all of the hydrocarbons contained in the stream. A noncondensed stream remaining after the condensation step, comprised predominantly of hydrogen and C.sub.1 to C.sub.3 h |
| 5670125 |
Process for the purification of nitric oxide |
September 23, 1997 |
| A gas mixture comprised of nitric oxide and, optionally an inert gas, and containing small amounts of nitrogen dioxide, and perhaps moisture and sulfur dioxide, is purified by passing the gas stream through a bed of zeolite having a silica to alumina ratio not greater than about 200. The |
| 5620501 |
Recovery of trace gases from gas streams |
April 15, 1997 |
| Selected strongly adsorbed gaseous impurities are removed from a gas stream by pressure swing adsorption in an adsorption system which includes a single adsorption vessel, a gas storage vessel and a single gas pump. Feed gas is pumped at a selected adsorption pressure cocurrently through |
| 5565089 |
Process for decoking catalysts |
October 15, 1996 |
| Coke deposits are removed from particulates by combustion in a regenerator by a process in which air is initially used as the oxidant. The combustion gas is subjected to a separation process to remove nitrogen therefrom, and the remaining carbon dioxide-enriched gas stream is recycled to |
| 5560817 |
Hydrocarbon catalytic cracking process |
October 1, 1996 |
| Hydrocarbon fluid catalytic cracking (FCC) plants are debottlenecked by replacing air feed to the cracking catalyst regenerator with oxygen and carbon dioxide exhaust from the catalyst regenerator and removing methane and hydrogen from the wet gas stream leaving the main fractionator |
| 5532384 |
Process for producing hydrocarbon partial oxidation products |
July 2, 1996 |
| Hydrocarbon derivatives are produced by contacting a hydrocarbon with oxygen obtained from an air separation unit in the presence of a partial oxidation reaction catalyst. After separation of the hydrocarbon derivative from the reactor effluent, unreacted hydrocarbon is recovered fro |
| 5514204 |
Process for the purification of nitric oxide |
May 7, 1996 |
| A gas mixture comprised of nitric oxide and, optionally an inert gas, and containing small amounts of nitrogen dioxide, and perhaps moisture and sulfur dioxide, is purified by passing the gas stream through a bed of metal cation-free silica, alumina, or zeolite. The concentration of |
| 5488185 |
Process for the production of ethanol and isopropanol |
January 30, 1996 |
| An ethene stream which contains ethane as an impurity or a propene stream which contains propane as an impurity is hydrated with water vapor in the presence of a hydration catalyst to produce ethanol or isopropanol, respectively. After removal of the alcohol the gaseous product stream is |
| 5470925 |
Process for the production of alkene polymers |
November 28, 1995 |
| An ethylene stream which contains ethane as an impurity or a propylene stream which contains propane as an impurity is contacted with a polymerization catalyst thereby producing a polymer product containing unreacted ethylene or propylene and the corresponding alkane. A gas mixture c |
| 5468459 |
Gas stream treatment method for removing per-fluorocarbons |
November 21, 1995 |
| A per-fluorocarbon containing gas is treated by contacting per-fluorocarbon contained within the gas with calcium hydride at a temperature in a range of between about 450 and 900.degree. C. The calcium hydride can be contained in a bed mixed with silicon or calcium oxide and such bed can |
| 5466837 |
Process for the production of hydrocarbon partial oxidation products |
November 14, 1995 |
| An ethylene stream which contains ethane as an impurity or a propylene stream which contains propane as an impurity is subjected to adsorption at a temperature of 50.degree. to 200.degree. C. in a bed of adsorbent which selectively adsorbs ethylene or propylene, thereby adsorbing substan |
| 5466837 |
Process for the production of hydrocarbon partial oxidation products |
November 14, 1995 |
| An ethylene stream which contains ethane as an impurity or a propylene stream which contains propane as an impurity is subjected to adsorption at a temperature of 50.degree. to 200.degree. C. in a bed of adsorbent which selectively adsorbs ethylene or propylene, thereby adsorbing substan |
| 5463137 |
Process for the production of oxo products |
October 31, 1995 |
| A propylene stream which contains propane as an impurity is contacted with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst thereby producing a product stream containing butyraldehyde and/or n-butyl alcohol, unreacted propylene and propane. A gas mixture co |
| 5417742 |
Removal of perfluorocarbons from gas streams |
May 23, 1995 |
| Perfluorocarbons are recovered from gas streams by subjecting the gas stream to an adsorption process in a bed of one or more energetically homogeneous adsorbents such as silicon-rich adsorbents of the FAU structure, silicon-rich adsorbents of the BEA structure, silicon-rich adsorben |
| 5365011 |
Method of producing unsaturated hydrocarbons and separating the same from saturated hydrocarbons |
November 15, 1994 |
| Method of separating a gaseous alkene from a gaseous alkane by a pressure swing adsorption process unit alone or in combination with the distillation column wherein the alkene is preferentially adsorbed onto a bed of 4A zeolite at a temperature of about 50.degree. to about 200.degree |
| 5322927 |
Method for producing polymers |
June 21, 1994 |
| Polyolefins are produced by a process which includes the steps of: polymerizing an olefin in a reaction zone; removing unreacted olefin from the polymer in a flash chamber and recycling the unreacted olefin to the reaction zone; stripping unreacted olefin from the polymer by passing a |
| 5278319 |
Process for the production of hydrocarbon partial oxidation products |
January 11, 1994 |
| An improved process is provided for the production of a partial oxidation product by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the partial oxidation product is removed, carbon dioxide and |
| 5268497 |
Process for the production of nitriles |
December 7, 1993 |
| A process for the production of an ethylenically unsaturated nitrile from a hydrocarbon feed stream comprised of a mixture of an alkene and an alkane by reaction with an oxygen-containing gas and ammonia. The alkene is converted to unsaturated nitrile by reaction with the oxygen and ammo |
| 5264608 |
Process for the production of nitriles from alkenes |
November 23, 1993 |
| A process for the production of an ethylenically unsaturated nitrile from a hydrocarbon feed stream comprised of a mixture of an alkene and an alkane by reaction with an oxygen-containing gas and ammonia. The alkene is converted to unsaturated nitrile by reaction with the oxygen and ammo |
| 5262547 |
Process for the production of petrochemicals |
November 16, 1993 |
| Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as a byproduct, is oxidized to carbo |
| 5229089 |
Recovery of flammable materials from gas streams |
July 20, 1993 |
| A process for separating methane from an oxygen-containing gas mixture which contains methane at a concentration greater than the upper explosive gas mixture limit by pressure swing adsorption without producing an explosive gas mixture. The process includes the steps of feeding the gas |
| 5179215 |
Process for the production of petrochemicals |
January 12, 1993 |
| An improved process is provided for the production of a petrochemical by the vapor phase reaction of a hydrocarbon with an oxygen-containing gas in the presence of a suitable catalyst to produce a flammable gaseous product stream comprising the desired petrochemical, unreacted hydrocarbo |
| 5177225 |
Process for the production of alkylene oxide |
January 5, 1993 |
| Disclosed is a process for the production of an alkylene oxide in which an alkene, and an oxygen containing gas are reacted in the presence of a flame suppressor under conditions of low alkene conversion and high alkylene oxide selectivity in which unreacted alkene is recycled to the |
| 5126463 |
Process for the production of anhydrides |
June 30, 1992 |
| This invention provides a process for the production of an anhydride by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the anhydride product is removed, carbon monoxide, present in the reactor |
| 5043461 |
Process for the production of oxides |
August 27, 1991 |
| An improved process for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, in the presence of a suitable catalyst. An alkane, e.g. propane, is converted to an alkene in a catalytic dehydrogenator. Th |
| 5015756 |
Process for the production of nitriles |
May 14, 1991 |
| An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator prov |
| 5008414 |
Process for the production of oxides |
April 16, 1991 |
| An improved process is provided for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a catalytic d |
| 4990632 |
Process for the production of oxides |
February 5, 1991 |
| An improved process is provided for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a dehydrogen |
| 4987239 |
Process for the production of anhydrides |
January 22, 1991 |
| An improved process is provided for the production of anhydrides from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air, in the presence of a suitable catalyst. In the process, a selective separator provides recycle |
| 4943650 |
Process for the production of nitriles |
July 24, 1990 |
| An improved process is provided for the production of nitriles and oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, and ammonia where a nitrile is desired, in the presence of a suitable catalyst. An alkane, e.g. pro |
| 4870201 |
Process for the production of nitriles |
September 26, 1989 |
| An improved process is provided for the production of nitriles from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, and ammonia in the presence of an ammoxidation catalyst. An alkane, e.g., propane, is converted to an alkene |
| 4868330 |
Process for the production of nitriles |
September 19, 1989 |
| An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator prov |
| 4849538 |
Process for the production of nitriles |
July 18, 1989 |
| An improved process is provided for the production of nitriles from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, and ammonia in the presence of an ammoxidation catalyst. An alkane, e.g. propane, is converted to an alkene |
| 4849537 |
Process for the production of nitriles |
July 18, 1989 |
| An improved process is provided for the production of nitriles from hydrocarbons by reaction with oxygen, air or gas-enriched in relative to an air, and ammonia, in the presence of an ammoxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a multistage dehydrogen |
