Patent · US Active

Methods for processing nitrogen rich renewable feedstocks

US9637699B2 · kind B2 · utility

5Cited by
8References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 2015
Grant dateMay 2, 2017
Priority date—
Expiry dateNov 27, 2035

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T50/678
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Processes for producing a fuel from a renewable feedstock which may have more than 60 ppm nitrogen. The renewable feedstock is passed to a deoxygenation zone. A hydrogen stream, preferably formed from a recycled gas, is introduced into the deoxygenation zone at a relatively high rate. The hydrogen introduction may be between 3 to 5 times the rate of hydrogen consumption in the deoxygenation zone. The hydrogen introduction may also be between 6000 to 9000 SCF/BBL. A deoxygenated effluent, comprising less than 1 wppm nitrogen, may be isomerized and separated into one or more product hydrocarbon streams such as a diesel fuel or aviation fuel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.