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:
Sep. 16, 2008
Filed:
Nov. 28, 2003
Applicant:
Jolinde Machteld Van DE Graaf, Amsterdam, NL;
Inventor:
Jolinde Machteld Van De Graaf, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/48 (2006.01); B01D 53/52 (2006.01); C10L 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the removal of hydrogen sulfide and mercaptans from a gas stream containing a high ratio of mercaptans to hydrogen sulfide, wherein the first step removes hydrogen sulfide by washing the gas stream with an aqueous washing solution comprising water, a physical solvent and a chemical solvent. The first removal step is followed by a second removal step by which mercaptans are removed from the washed gas stream by means of molecular sieves.