Upgrading sugar-alcohol derived gas oil in a gas oil hydrocracker

Patent metadata

Field	Value
Publication number	US-9481836-B2
Application number	US-201514750541-A
Country	US
Kind code	B2
Filing date	Jun 25, 2015
Priority date	Jun 26, 2014
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Biomass derived gas oil is blended with petroleum derived gas oil and upgrading into more salable and more valuable products by co-processing the blended material in a gas oil hydrocracking system comprising two reactors where the blended material is first hydrotreated and then hydrocracked.

First claim

The invention claimed is:

1. A process for co-processing biomass derived gas oil stream with conventional petroleum derived gas oil thereby increasing the gasoline yield and middle distillate yield of a gas oil hydrocracker unit in an oil refinery comprising:
a) providing a biomass derived gas oil from a biomass conversion process;
b) blending the biomass derived gas oil with petroleum derived gas oil to form a blended feedstock such that the biomass derived gas oil comprises at least 0.5 percent of the blended feedstock;
c) feeding the blended feedstock along with hydrogen to a first reactor having a hydrotreating catalyst that tends to saturate carbon double bonds;
d) hydrotreating the blended feedstock in the first reactor to form a hydrotreated blended feedstock;
e) feeding the hydrotreated blended feedstock along with hydrogen into a second reactor having a hydrocracking catalyst that tends to break longer chain hydrocarbons to two or more shorter chain hydrocarbons;
f) hydrocracking the hydrotreated blended feedstock in the second reactor to form a cracked product; and
g) fractionating the cracked product to recover gasoline and middle distillates from the cracked product.

2. The process according to claim 1 , wherein the biomass derived gas oil is sugar alcohol derived gas oil.

3. The process according to claim 1 wherein the first reactor also includes a hydrocracking catalyst with the hydrotreating catalyst.

4. The process according to claim 1 wherein the blended feedstock comprises about 10 wt % biomass derived gas oil and about 90% wt % petroleum derived gas oil.

5. The process according to claim 1 wherein the hydrotreating catalyst is a hydrotreating catalyst.

6. The process according to claim 1 wherein the hydrocracking catalyst in the first reactor is a mild hydrocracking catalyst.

7. The process according to claim 1 wherein the hydrocracking catalyst in the second reactor is a naphtha hydrocracking catalyst.

8. The process according to claim 1 wherein the second hydrocracking catalyst in the second reactor is a hydrocracking catalyst.

9. The process according to claim 1 where the biomass derived gas oil is combined with the petroleum derived gas oil in a ratio of biomass derived to petroleum derived of between about 0.1 to 20 and about 1 to 1.

Assignees

• Phillips 66 Co

Inventors

• Yao Jianhua
• Pansare Sourabh S

Classifications

• C10G2300/1011

  Biomass · CPC title

• C10G45/00

  Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds · CPC title

• C10G2400/02

  Gasoline · CPC title

• Y02P30/20

  using bio-feedstock · CPC title

• C10G65/12 Primary

  including cracking steps and other hydrotreatment steps · CPC title