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:
Jan. 03, 1984
Filed:
Apr. 09, 1982
Thomas R Farrell, Hercules, CA (US);
Shionogi & Co., Ltd., Osaka, JP;
Abstract
A hydrocarbon material is subjected to mild hydrotreatment, washed, subjected to severe hydrotreatment and washed with only enough water to absorb all of the H.sub.2 S but only a fraction of the NH.sub.3 present in the hydrocarbon material. The effluent streams from each step of this process are segregated so that each may be fed separately to the optimum section of the recovery process. The washed hydrotreated hydrocarbon material is separated from the second effluent stream, and then a vapor phase is separated from the hydrocarbon material in a high pressure separator. The vapor phase is scrubbed with water to form an aqueous solution of NH.sub.3 with only a minor amount of H.sub.2 S (an NH.sub.3 to H.sub.2 S ratio of at least 6:1).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile