摘要:
Methods are provided for producing lubricant base oils using a combination of catalytic and solvent processing. By using a combination of catalytic processing for feed conversion and dewaxing while using solvent processing for removal of aromatics. Group II and Group III lubricant base oils can be produced using low pressure catalytic processes.
摘要:
Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z 1 OZ 2 OSiCH 2 ] 3 (I), wherein each Z 1 and Z 2 independently represent a hydrogen atom, a C 1 -C 4 alkyl group or a bond to a silicon atom of another monomer and at least one other trivalent metal oxide monomer are provided herein. Methods of preparing and processes of using the organosilica materials, e.g. , for catalysis etc. , are also provided herein.
摘要:
Methods of preparing organosilica materials, which is a polymer comprising independent siloxane units of Formula [Z3Z4SiCH2]3 (I), wherein each Z3 represents a hydroxyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another siloxane unit and each Z4 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C4 alkyl group, or an oxygen atom bonded to a silicon atom of another siloxane, in the absence of a structure directing agent and/or porogen are provided herein. Processes of using the organosilica materials, e.g., for gas separation, etc., are also provided herein.
摘要翻译:制备有机硅材料的方法,其为包含式[Z 3 Z 4 SiCH 2] 3(I)的独立硅氧烷单元的聚合物,其中每个Z 3表示羟基,C1-C4烷氧基或与另一硅氧烷的硅原子键合的氧原子 在不存在结构导向剂和/或致孔剂的情况下,Z4表示羟基,C1-C4烷氧基,C1-C4烷基或与另一硅氧烷的硅原子键合的氧原子。 于此。 本文还提供了使用有机二氧化硅材料的方法,例如用于气体分离等。
摘要:
Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [Z 1 OZ 2 OSiCH 2 ] 3 (I), wherein each Z 1 and Z 2 independently represent a hydrogen atom, a C 1 -C 4 alkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g ., aromatic hydrogenation, the hydrogenation catalyst are also provided herein.
摘要:
Methods are provided for hydroprocessing a feed (such as hydrotreating, hydrocracking, or hydrofining a feed) to generate a product with a reduced or minimized aromatics content relative to the severity of the hydroprocessing conditions. In some types of hydroprocessing applications, it can be desirable to select the severity of hydroprocessing conditions to achieve a desired level of removal for sulfur, a desired level for removal of nitrogen, and/or a desired level for increasing the viscosity index of a feed. The severity for heteroatom removal and/or viscosity index uplift can also correspond to an amount of conversion of a feed to lower boiling point products, so the lowest severity conditions suitable for achieving a product quality can be desirable. By improving the aromatics saturation during hydroprocessing, the severity of subsequent aromatics saturation processes can be reduced.
摘要:
The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm∙g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm∙g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates.
摘要:
A process for producing naphthenic bright stocks from low quality naphthenic crude feedstocks. The naphthenic bright stocks produced by the process have improved low temperature properties at high yields based on feedstock.
摘要:
The present disclosure relates to new and optimized processes for the preparation of micro- and nano-scale capsules containing lubricant chemical additives. The present disclosure also relates to micro- and nano-scale capsules prepared by such processes, which are useful in a variety of applications, including automotive lubricants, diesel lubricants, industrial lubricants, metal-working lubricants, coolants, and process fluids. Micro- and nano-scale capsules prepared as described herein have the required properties that such capsules need to exhibit in order to function effectively and meet the requirements imposed by engine lubrication conditions. The microcapsules may be dispersed in a lubricating oil such that the lubricant exhibits improved stability and anti-wear performance, thereby improving engine fuel efficiency and performance.