The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Feb. 08, 2012
Applicants:
Jan Wahlström, Porvoo, FI;
Juhani Aittamaa, Helsinki, FI;
Isto Eilos, Porvoo, FI;
Inventors:
Assignee:
NESTE OYJ, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 3/00 (2006.01); B01D 53/52 (2006.01); B01D 53/14 (2006.01); C01B 17/20 (2006.01); C01G 3/06 (2006.01); C10K 1/10 (2006.01); C10J 3/00 (2006.01); C10K 1/00 (2006.01); C10K 1/08 (2006.01); C10K 1/16 (2006.01);
U.S. Cl.
CPC ...
B01D 53/526 (2013.01); B01D 53/1406 (2013.01); B01D 53/1462 (2013.01); C01B 17/20 (2013.01); C01G 3/06 (2013.01); C10J 3/00 (2013.01); C10K 1/004 (2013.01); C10K 1/005 (2013.01); C10K 1/085 (2013.01); C10K 1/108 (2013.01); C10K 1/165 (2013.01); B01D 2252/2021 (2013.01); B01D 2257/304 (2013.01); B01D 2257/504 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/207 (2013.01); C10G 2300/44 (2013.01); C10J 2300/0916 (2013.01); Y02C 10/06 (2013.01); Y02E 20/18 (2013.01); Y02E 50/32 (2013.01); Y02P 20/145 (2015.11); Y02P 20/152 (2015.11); Y02P 30/20 (2015.11);
Abstract
The present description is related to the field of hydrocarbon production by gasification of carbonaceous material. It provides a two-stage gas washing method as a part of gas refining. More specifically it discloses a method for hydrogen sulfide and carbon dioxide removal from synthesis gas produced by gasification. It introduces a use of a novel combination of wash approaches for this application. As a specific application, this process is utilized as a part of biomass to liquid (BTL) process.