Class / Patent application number | Description | Number of patent applications / Date published |
585255000 | Polymerization of olefins only | 13 |
20110230690 | PROCESS FOR OLIGOMERIZING OLEFINS - A process for oligomerizing olefinic, lower hydrocarbons. The process comprises the steps of feeding a fresh olefinic hydrocarbon feedstock to a reaction zone; contacting the olefinic hydrocarbons of the feedstock with an acidic catalyst in the reaction zone in order to dimerize at least a part of the olefinic hydrocarbons, withdrawing an effluent containing oligomerized olefins from the reaction zone; and conducting the effluent to a separation zone, wherein the oligomerization reaction product is separated from said effluent. According to the invention, the reaction is carried out in homogeneous phase comprising a solvent for olefinic hydrocarbons, maintained at supercritical conditions. By using supercritical carbon dioxide as a solvent deactivation rate of catalyst can be diminished. Carbon dioxide is easy to remove from the product mixture and spent reaction medium can be used for regeneration of the catalyst. | 09-22-2011 |
20130090503 | Process for Alkane Oligomerization - Provided is a process for preparing oligomers from an alkane. The process comprises (a) contacting an alkane under dehydrogenation conditions in the presence of a dehydrogenation catalyst such as an iridium catalyst complex comprising iridium complexed with a benzimidiazolyl-containing ligand to form olefins, and (b) contacting the olefins prepared in step (a) under oligomerization conditions with an oligomerization catalyst such as a nickel, platinum or palladium metal catalyst complex comprising the metal complexed with a nitrogen containing bi- or tridentate ligand to prepare oligomers of the olefins, and hydrogenating the olefin oligomers. In one embodiment, the ligands of the catalyst complexes in step (a) and step (b) can be the same. | 04-11-2013 |
20130131410 | Process for Producing Novel Synthetic Basestocks - This disclosure relates to a liquid syndiotactic polyalphaolefin, sPAO, comprising one or more C | 05-23-2013 |
20140135541 | PROCESS FOR OLIGOMERIZING GASOLINE WITHOUT FURTHER UPGRADING - Oligomerizing C | 05-15-2014 |
20140249340 | PROCESS FOR THE PRODUCTION OF MIDDLE DISTILLATES FROM A FEEDSTOCK COMPRISING BUTANOL AND PENTANOL - The invention relates to a process for the production of middle-distillate hydrocarbon-containing bases from a feedstock comprising butanol and pentanol, with said process comprising at least:
| 09-04-2014 |
20140378720 | Processes to Produce Polyalpha-Olefin Compositions - A process to produce polyalpha-olefins includes contacting a feed stream of at least one alpha-olefin monomer having 4 to 25 carbon atoms with a metallocene catalyst compound and an activator, and optionally an alkyl-aluminum compound, under polymerizations conditions in a reactor. The alpha-olefin monomer is present at 10% volume or more in the reactor and the feed stream includes less than 600 ppm of heteroatom containing compounds. The process further includes obtaining a polyalpha-olefin with at least 50 mole % C5 to C24 alpha-olefin monomer and kinematic viscosity at 100° C. of 5000 cSt or less. | 12-25-2014 |
20150045599 | METHODS FOR PRODUCING JET-RANGE HYDROCARBONS - A method for producing jet-range hydrocarbons includes passing a stream comprising renewable C | 02-12-2015 |
20150073185 | Novel Catalyst Complex and Use Thereof in Alkane Oligomerization - Provided is a Group 9 novel metal catalyst complex further comprising a ketone-containing cocatalyst. The metal catalyst complex is useful in generating olefins from alkanes with great efficiency. In one embodiment, provided is an iridium catalyst complex useful in the dehydrogenation of alkanes comprising a ketone-containing cocatalyst and iridium complexed with a tridentate ligand. Also provided is a novel dehydrogenation method which utilizes the catalyst composition. In other embodiments, a novel process for preparing oligomers from alkanes utilizing the catalyst composition is provided. | 03-12-2015 |
20150376083 | EXOTHERM, CONVERSION AND SELECTIVITY MANAGEMENT FOR OLIGOMERIZATION PROCESS - A process is presented for the control of the exotherm from an oligomerization process. The oligomerization process is for the conversion of C3 and C4 olefins to distillate. The process includes controlling the extent of the reaction to limit temperature rise, and recycle of a portion of the reactor effluent stream for dilution of the C3 and C4 olefins passed to the oligomerization reactors, and for separating out the product distillate. | 12-31-2015 |
20150376089 | METHODS AND SYSTEMS FOR PRODUCING JET-RANGE HYDROCARBONS - Methods and systems for producing jet-range hydrocarbons are disclosed herein. In an exemplary embodiment, a method for producing jet-range hydrocarbons includes the steps of combining a first stream including C4 olefinic hydrocarbons and a second stream including C5-C8 olefinic hydrocarbons to produce a third stream including C4-C8 hydrocarbons, oligomerizing the third stream including C4-C8 olefinic hydrocarbons to produce a fourth stream including C4-C20 olefinic hydrocarbons, and separating C5-C8 hydrocarbons from the fourth stream including C4-C20 olefinic hydrocarbons to produce the second stream including C5-C8 olefinic hydrocarbons and a fifth stream including C9-C20 olefinic hydrocarbons. The method further includes the step of hydrogenating the fifth stream including C9-C20 olefinic hydrocarbons to produce a sixth stream including C9-C20 paraffinic jet-range hydrocarbons. | 12-31-2015 |
20160090333 | METHODS AND APPARATUS FOR PRODUCING JET-RANGE HYDROCARBONS - Methods and apparatus are provided for producing jet-range hydrocarbons from biorenewable sources, such as oligomerizing C | 03-31-2016 |
20160137934 | FLEXIBLE OPERATION OF OLIGOMERIZATION PROCESS - A process and apparatus for controlling the amount of gasoline and distillate obtained from an oligomerate product is described. The process includes oligomerizing olefins in a feed stream to produce a mixture of an oligomerate product and unreacted feed. The mixture is separated into a light stream comprising the unreacted feed and the oligomerate product. Some or all of the oligomerate product is hydrogenated to produce hydrotreated oligomerate product. The hydrotreated oligomerate product can be separated into gasoline and distillate. A recycle stream comprising at least one of non-hydrotreated oligomerate product and hydrotreated oligomerate product is introduced into the oligomerization zone. The flow rates of non-hydrotreated oligomerate product and hydrotreated oligomerate product in the recycle stream are controlled to control the amount of gasoline and distillate product produced. | 05-19-2016 |
20160194257 | SYSTEMS AND PROCESSES FOR CONVERSION OF ETHYLENE FEEDSTOCKS TO HYDROCARBON FUELS | 07-07-2016 |