Catalysts and process for liquid hydrocarbon fuel production

Patent metadata

Field	Value
Publication number	US-10850266-B2
Application number	US-201715714238-A
Country	US
Kind code	B2
Filing date	Sep 25, 2017
Priority date	Aug 10, 2009
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.

First claim

What is claimed is:

1. A catalyst for the production of hydrocarbon fuel products from synthesis gas comprising:
a molybdenum catalyst encaged in a HZSM-5 zeolite support;
wherein the zeolite has a pore diameter of about 0.4 to about 0.7 nm;
wherein the molybdenum catalyst has a Mo/Al (framework) ratio of from about 0.5 to about 1.5 to about 1.5 to about 0.5; and
wherein the silica/alumina ratio is from about 23 to about 250.

2. The catalyst of claim 1 , further comprising at least one alkali metal as a promoter for minimizing carbon dioxide products in the production of hydrocarbon fuel products.

3. The catalyst of claim 1 , wherein the molybdenum catalyst is chosen from the group consisting of molybdenum oxide and molybdenum sulfide.

4. The catalyst of claim 1 , wherein Mo/framework Al ratio is from about 0.8 to 1.2 to about 1.2 to 0.8.

5. The catalyst of claim 1 , wherein the Mo/framework Al ratio is about 1 to about 1.

6. The catalyst of claim 1 , wherein the pore diameter is about 0.56 nm.

Assignees

• Univ Mississippi State

Inventors

• White Mark G
• Liu Shetian

Classifications

• C10G2400/30

  Aromatics · CPC title

• B01J2229/18

  to introduce other elements into or onto the molecular sieve itself · CPC title

• C10L3/12

  Liquefied petroleum gas {(liquefying by pressure and cold treatment F25J)} · CPC title

• C10L1/08

  for compression ignition · CPC title

• B01J37/0201

  Impregnation · CPC title