12results about "Naphtha reforming" patented technology

A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and / or sorptive processes.

Catalysts and method of preparing the catalysts are disclosed. One of the catalysts includes a zeolite support, a Group VIII metal on the zeolite support, and at least two halides bound to the zeolite support, to the Group VIII metal, or to both, and can have an average crush strength greater than 11.25 lb based on at least two samples of pellets of the catalyst measured in accordance with ASTM D4179.

A novel synthetic crystalline molecular sieve material, designated boron ITQ-21, is provided. The boron ITQ-21 can be synthesized using an N,N-diethyl-5,8-dimethyl-2-azonium bicyclo [3.2.2] nonane cation as a structure directing agent. The boron ITQ-21 may be used in organic compound conversion reactions and / or sorptive processes.

This invention discloses a method for microwave-catalyzed dehydrogenation of naphtha to produce aromatics, specifically comprising the following steps: Step 1, oxidizing and etching the surfaces of four different diameter carbon fibers to obtain four modified carbon fibers; Step 2, preparing four platinum-carbon fibers of different diameters based on the four modified carbon fibers obtained in Step 1; Step 3, preparing a gradient-pore structured platinum-carbon fiber paper based on the four different diameter platinum-carbon fibers obtained in Step 2; Step 4, using the gradient-pore structured platinum-carbon fiber paper obtained in Step 3 to catalyze the dehydrogenation of naphtha to obtain aromatics. This invention uses microwave-assisted catalysis to lower the reaction temperature, achieving localized catalytic heating to reduce side reactions, and also achieves high dehydrogenation efficiency.

The application provides a preparation method of a catalytic reforming catalyst and the catalytic reforming catalyst. The preparation method of the catalytic reforming catalyst comprises the following steps: 1) adding a platinum group metal precursor into a system containing a first silicon source and an aluminum source, mixing, and then adding a second silicon source to obtain a silicon-aluminum precursor wrapped with the platinum group metal; the first silicon source comprises a silane compound containing an aminopropyl group; 2) performing steam-assisted crystallization treatment on the silicon-aluminum precursor wrapped with the platinum group metal to obtain the catalytic reforming catalyst. The catalytic reforming catalyst prepared by the preparation method has excellent stability and a small molecular sieve crystal grain size, and has excellent aromatic hydrocarbon selectivity, aromatic hydrocarbon yield and carbon deposition resistance when used in a catalytic reforming reaction.

A novel synthetic crystalline molecular sieve material, designated SSZ-113 is provided which exhibits increased acidity. The SSZ-113 can be synthesized using 1,3-bis(2,3-dimethyl-1H-imidazolium)propane dications as a structure directing agent. The synthesis employs a boron pathway to achieve increased acid sites. The SSZ-113 of increased acidity may be used in organic compound conversion and / or sorptive processes.

A process of producing Group III base oils, along with a naphtha product and diesel product, from whole waxy crude oil is provided. The inventive process omits the typical vacuum distillation stage and separations to form the typical cuts off of the vacuum tower. By selecting a waxy crude oil suitable for processing without separations, the crude oil may be hydroprocessed, dearomatized, dewaxed, and hydrofinished to produce a Group III base oil. Additionally, the dewaxing catalyst will isomerize the naphtha range molecules to increase the octane value to a suitable level for blending into gasoline and the diesel range molecules to reduce the diesel cloud point.

A process for preparing a molecular sieve for use as a catalyst is provided, which comprises preparing a synthesis mixture for the molecular sieve containing a morphology modifier that may be selected from a cationic surfactant having a single quaternary ammonium group containing at least one hydrocarbyl group having at least 12 carbon atoms, a nonionic surfactant, an anionic surfactant, a sugar, and combinations thereof.

The present disclosure provides for processes and catalysts for enhancing a linear alpha-olefin product stream from an oligomerization reaction. A catalyst composition including a first zeolite and a second zeolite is provided, the first and second zeolites each having an average pore size of greater than about 6 Å, wherein the catalyst composition has a Brönsted Acid Site (BAS) equivalent of about 1.0 mmol / g catalyst or less, and wherein the first zeolite is at least partially metal ion-exchanged and the second zeolite is at least partially in H+ form. A process for producing a purified linear-alpha olefin (LAO) is also provided, which includes introducing a LAO product stream comprising an alkyl-butene fraction into a catalyst bed comprising a zeolite catalyst and in fluid connection with the LAO product stream to catalytically isomerize the alkyl-butene fraction into an alkyl-pentene fraction.

An anti-coking surface having a thickness up to 15 microns comprising from 15 to 50 wt. % of MnCr2O4 (for example manganochromite); from 15 to 25 wt. % of Cr0.23Mn0.08Ni0.69 (for example chromium manganese nickel); from 10 to 30 wt. % of Cr1.3Fe0.7O3 (for example chromium iron oxide); from 12 to 20 wt. % of Cr2O3 (for example eskolaite); from 4 to 20 wt. % of CuFe5O8 (for example copper iron oxide); and less than 5 wt. % of one or more compounds chosen from FeO(OH), CrO(OH), CrMn, Si and SiO2 (either as silicon oxide or quartz) and less than 0.5 wt. % of aluminum in any form provided that the sum of the components is 100 wt. % is provided on steel.