The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C.sub.10.sup.+.

The present invention describes a process for the isomerization of paraffinic feedstocks operating at a temperature of between 200 C. and 500 C., at a total pressure of between 0.45 MPa and 7 MPa, at a hydrogen partial pressure of between 0.3 and 5.5 MPa, at an hourly space velocity of between 0.1 and 10 kilograms of feedstock introduced per kilogram of catalyst and per hour and using a catalyst comprising at least one metal of group VIII of the periodic table of elements, at least one matrix and at least one zeolite IZM-2, in which the ratio between the number of moles of silicon and the number of moles of aluminium of the zeolite IZM-2 network is between 25 and 55, preferably between 25 and 50, and preferably between 30 and 50.

The present invention describes a process for the isomerization of paraffinic feedstocks operating at a temperature of between 200 C. and 500 C., at a total pressure of between 0.45 MPa and 7 MPa, at a hydrogen partial pressure of between 0.3 and 5.5 MPa, at an hourly space velocity of between 0.1 and 10 kilograms of feedstock introduced per kilogram of catalyst and per hour and using a catalyst comprising at least one metal of group VIII of the periodic table of elements, at least one matrix and at least one zeolite IZM-2, in which the ratio between the number of moles of silicon and the number of moles of aluminium of the zeolite IZM-2 network is between 25 and 55, preferably between 25 and 50, and preferably between 30 and 50.

The present invention describes improved processes for the synthesis of high value chemical products from low carbon syngas. In one aspect, a process for the production of chemicals is provided. The process comprises the following: feeding a feedstock comprising hydrogen and carbon monoxide to a liquid fuel production reactor, wherein the liquid fuel production reactor comprises a catalyst, thereby producing a product, wherein the product comprises a liquid phase and a solid phase, and wherein the liquid phase comprises C5-C23 hydrocarbons and oxygenated hydrocarbons, and wherein the solid-phase comprises C24-C45 aliphatic hydrocarbons, and wherein the liquid phase is between 51 percent by volume and 99 percent by volume of the product.

The present invention describes improved processes for the synthesis of high value chemical products from low carbon syngas. In one aspect, a process for the production of chemicals is provided. The process comprises the following: feeding a feedstock comprising hydrogen and carbon monoxide to a liquid fuel production reactor, wherein the liquid fuel production reactor comprises a catalyst, thereby producing a product, wherein the product comprises a liquid phase and a solid phase, and wherein the liquid phase comprises C5-C23 hydrocarbons and oxygenated hydrocarbons, and wherein the solid-phase comprises C24-C45 aliphatic hydrocarbons, and wherein the liquid phase is between 51 percent by volume and 99 percent by volume of the product.

The present invention describes improved processes for the synthesis of high value chemical products from low carbon syngas. In one aspect, a process for the production of chemicals is provided. The process comprises the following: feeding a feedstock comprising hydrogen and carbon monoxide to a liquid fuel production reactor, wherein the liquid fuel production reactor comprises a catalyst, thereby producing a product, wherein the product comprises a liquid phase and a solid phase, and wherein the liquid phase comprises C5-C23 hydrocarbons and oxygenated hydrocarbons, and wherein the solid-phase comprises C24-C45 aliphatic hydrocarbons, and wherein the liquid phase is between 51 percent by volume and 99 percent by volume of the product.

The present invention describes improved processes for the synthesis of high value chemical products from low carbon syngas. In one aspect, a process for the production of chemicals is provided. The process comprises the following: feeding a feedstock comprising hydrogen and carbon monoxide to a liquid fuel production reactor, wherein the liquid fuel production reactor comprises a catalyst, thereby producing a product, wherein the product comprises a liquid phase and a solid phase, and wherein the liquid phase comprises C5-C23 hydrocarbons and oxygenated hydrocarbons, and wherein the solid-phase comprises C24-C45 aliphatic hydrocarbons, and wherein the liquid phase is between 51 percent by volume and 99 percent by volume of the product.

The present disclosure generally relates to processes to produce alpha-olefin oligomers and poly alpha-olefins. In an embodiment, the present disclosure provides a process to produce a poly alpha-olefin (PAO), the process including: introducing a C.sub.6-C.sub.32 alpha-olefin and a catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under reaction conditions, wherein the alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more; and obtaining a product comprising PAO dimer and optional higher oligomers of alpha-olefin, or a combination thereof, the PAO dimer comprising 96 mol % or more of vinylidene, based on total moles of vinylidene, disubstituted vinylene, and trisubstituted vinylene in the product. In at least one embodiment, a process includes functionalizing and/or hydrogenating a PAO product of the present disclosure. In at least one embodiment, a blend includes a PAO product of the present disclosure.

The present disclosure generally relates to processes to produce alpha-olefin oligomers and poly alpha-olefins. In an embodiment, the present disclosure provides a process to produce a poly alpha-olefin (PAO), the process including: introducing a C.sub.6-C.sub.32 alpha-olefin and a catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under reaction conditions, wherein the alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more; and obtaining a product comprising PAO dimer and optional higher oligomers of alpha-olefin, or a combination thereof, the PAO dimer comprising 96 mol % or more of vinylidene, based on total moles of vinylidene, disubstituted vinylene, and trisubstituted vinylene in the product. In at least one embodiment, a process includes functionalizing and/or hydrogenating a PAO product of the present disclosure. In at least one embodiment, a blend includes a PAO product of the present disclosure.

A process and apparatus for reducing the sulfur content of naphtha. The process includes introducing at least a portion of a naphtha feed stream to a selective hydrodesulfurization zone under selective hydrodesulfurization conditions in the presence of a selective hydrodesulfurization catalyst to form a low sulfur stream which contains mercaptan and thiophene compounds. At least a portion of the low sulfur stream is separated into at least two streams, a mercaptan rich stream containing mercaptan and thiophene compounds and an overhead stream containing hydrogen sulfide and liquid petroleum gas. The mercaptan rich stream is treated in an adsorbent zone to remove at least a portion of the mercaptan and thiophene compounds to form a mercaptan lean stream.