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:
Nov. 22, 2016
Filed:
Jun. 27, 2008
Marco Betting, Woerde, NL;
Cornelis Antonie Tjeenk Willink, Wassenaar, NL;
Robert Petrus Van Bakel, Haarlem, NL;
Marco Betting, Woerde, NL;
Cornelis Antonie Tjeenk Willink, Wassenaar, NL;
Robert Petrus Van Bakel, Haarlem, NL;
TWISTER B.V., Rijswijk, NL;
Abstract
A method for removing hydrogen sulphide (HS) from a natural gas stream comprising methane (CH) and HS comprises: —cooling the natural gas stream in a heat exchanger assembly (); —feeding at least part of the cooled natural gas stream through a feed conduit () into a cyclonic expansion and separation device () in which the cooled natural gas stream is expanded in a nozzle () and thereby further cooled to a temperature and pressure below the dew point of HS and is separated by inducing the cooled natural gas stream to swirl in a tubular separation chamber () thereby inducing centrifugal forces to separate the cooled natural gas stream into a cooled low density fluid fraction, which is HS depleted and methane enriched, and a cooled high density fluid fraction, which is HS enriched and methane depleted; —feeding the cooled low density fluid fraction to a product gas conduit () which is connected to the heat exchanger assembly () for cooling the natural gas stream fed to the cyclonic expansion and separation device (); and —feeding the cooled high density fluid fraction to a fractionating column () for further separation.