Class / Patent application number | Description | Number of patent applications / Date published |
585671000 | By skeletal isomerization | 6 |
20090043144 | Propylene and isoprene production - A process for producing propylene and isoprene from a feed stream comprising 1-butene and isobutene is disclosed. The feed stream is reacted in a catalytic distillation reactor containing an olefin isomerization catalyst to produce an overhead stream comprising 2-butene and isobutene and a bottoms stream comprising 2-butene. The overhead stream is reacted in the presence of a metathesis catalyst to produce propylene and isoamylenes. Isoprene is produced by dehydrogenation of isoamylenes. | 02-12-2009 |
20090054717 | Method of Producing 3,4-Diacyloxy-1-Butene - This invention provides a method of producing 3,4-diacyloxy-1-butene by isomerization by heating 1,4-diacyloxy-2-butene in the presence of an isomerization catalyst, with a higher yield rate with respect to the supply amount of a starting material, even not changing a kind of the isomerization catalyst, a composition of the starting material, and/or a chemical structure of 1,4-diacyloxy-2-butene used as the starting material. This advantage is achieved by preventing the isomerization from terminating through suppressing attaining equilibrium. | 02-26-2009 |
20100197987 | DEISOBUTENIZER - A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a lower portion of the first column. | 08-05-2010 |
20120271090 | ISOMERIZATION OF LINEAR ALPHA-OLEFINS - Process for isomerizing linear alpha-olefins having from 10 to 25 carbon atoms over a heterogeneous catalyst. | 10-25-2012 |
20150051431 | METHODS AND SYSTEMS FOR PRODUCING GASOLINE - Methods and systems for producing gasoline are disclosed. In one exemplary embodiment, a method for producing gasoline includes the steps of isomerizing a first stream comprising normal C | 02-19-2015 |
20220135499 | OLEFIN ISOMERIZATION WITH SMALL CRYSTALLITE ZEOLITE CATALYST - A skeletal isomerization process for isomerizing olefins is described. The process includes the steps of feeding an olefin-containing feed to a reactor having an isomerization catalyst with a small crystalline size that is less than 1 μm in all directions. The small crystalline size increases the life of the catalyst and the yield of skeletal isomer products, as well as reducing the formation of heavy C5+ olefin byproducts, as compared to processes using conventional catalyst with crystalline sizes of 1 μm or more. | 05-05-2022 |