Patent application number | Description | Published |
20080249342 | Production of Aromatics from Methane - In a process for converting methane to aromatic hydrocarbons, a feed containing methane and a particulate catalytic material are supplied to a reaction zone operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons and to deposit carbonaceous material on the particulate catalytic material causing catalyst deactivation. At least a portion of the deactivated particulate catalytic material is removed from the reaction zone and is heated to a temperature of about 700° C. to about 1200° C. by direct and/or indirect contact with combustion gases produced by combustion of a supplemental fuel. The heated particulate catalytic material is then regenerated with a hydrogen-containing gas under conditions effective to convert at least a portion of the carbonaceous material thereon to methane and the regenerated catalytic particulate material is recycled back to the reaction zone. | 10-09-2008 |
20100305374 | Production Of Aromatics From Methane - In a process for converting methane to aromatic hydrocarbons, a feed containing methane is supplied to one or more reaction zone(s) containing catalytic material operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons; the reaction zone(s) being operated with an inverse temperature profile. | 12-02-2010 |
20100331592 | Production of Aromatics from Methane - A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises a support and molybdenum or a compound thereof dispersed on the support. The support comprises an aluminosilicate zeolite combined with a binder selected from silica, titania, zirconia and mixtures thereof. The catalyst is substantially free of aluminum external to the framework of the aluminosilicate zeolite. | 12-30-2010 |
20110040135 | Production of Aromatic Hydrocarbons from Methane - In a process for converting methane to higher hydrocarbons including aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst in a reaction zone under conditions effective to convert said methane to aromatic hydrocarbons. A first portion of the catalyst is transferred from the reaction zone to a heating zone, where the first catalyst portion is heated by contacting the catalyst with hot combustion gases generated by burning a supplemental source of fuel. The heated first catalyst portion is then returned to the reaction zone. | 02-17-2011 |
20110054232 | Production of Aromatics from Methane - A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises molybdenum or a compound thereof dispersed on an aluminosilicate zeolite, wherein the amount of aluminum present as aluminum molybdate in the catalyst is less than 2700 ppm by weight. | 03-03-2011 |
20110105816 | Production of Aromatics from Methane - In a process for converting methane to aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst in a reaction zone under conditions effective to convert the methane to aromatic hydrocarbons. The reaction zone is contained within a reactor and the reactor or an internal component of the reactor has at least one surface that is chemically exposed to the feed and is formed from a refractory material that exhibits a carbon uptake (mass of carbon absorbed per unit of exposed metal surface area) of less than 25 g/m | 05-05-2011 |
20120083637 | Regeneration of Metal-Containing Catalysts - In a process for the regeneration of a coked metal-containing catalyst, the coked catalyst is contacted in a regeneration zone with an atmosphere which contains carbon dioxide and carbon monoxide at a temperature of at least 400° C. | 04-05-2012 |
20130204056 | Selective Hydrogenation of Alkynyl-Containing Compounds - A selective hydrogenation method is particularly effective in selectively hydrogenating alkynyl compounds, such as acetylene or methyl acetylene, over alkenyl compounds, such as ethylene. The method produces a relatively high quantity of heat during the selective hydrogenation reaction. This production of heat is, however, quite beneficial in that enough heat is produced such that a substantial portion of the produced heat can be recovered for heat efficiency purposes. | 08-08-2013 |
20140275607 | Methyl-Substituted Biphenyl Compounds, Their Production and Their Use in the Manufacture of Plasticizers - In a process for producing a methyl-substituted biphenyl compound, at least one methyl-substituted cyclohexylbenzene compound of the formula: | 09-18-2014 |
20140316178 | Process Stream Upgrading - The invention generally relates to processes for upgrading a process stream, such as those containing C | 10-23-2014 |
20140378697 | Hydroalkylation Catalyst and Process for Use Thereof - This invention relates to process for producing biphenyl esters, the process comprising:
| 12-25-2014 |
20150080545 | Production and Use of 3,4' and 4,4'-Dimethylbiphenyl Isomers - In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers. | 03-19-2015 |
20150080546 | Production and Use of 3,4' and 4,4'-Dimethylbiphenyl Isomers - In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers. | 03-19-2015 |