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:
Apr. 21, 2015
Filed:
Dec. 08, 2010
Bernd Polster, Frankfurt am Main, DE;
Alexander Roesch, Darmstadt, DE;
Matthew Shaver, Houston, TX (US);
Dieter Ulber, Steinbach, DE;
Ulrich Wolf, Egelsbach, DE;
Bernd Polster, Frankfurt am Main, DE;
Alexander Roesch, Darmstadt, DE;
Matthew Shaver, Houston, TX (US);
Dieter Ulber, Steinbach, DE;
Ulrich Wolf, Egelsbach, DE;
Air Liquide Global E&C Solutions Germany GmbH, Frankfurt am Main, DE;
Abstract
A method for producing a synthesis-gas product gas and a vapor stream includes catalytic steam reforming a hydrocarbonaceous feedstock in a steam reformer. The hot synthesis-gas product gas stream is cooled in a heat exchanger to form a cooled synthesis-gas product gas stream and a first partial vapor stream, which is supplied to the product vapor stream. The reforming furnace is operated so as to burn a burner feedstock in burners, cool a hot flue gas stream from the burners in a heat exchanger to form a cooled flue gas stream and a second partial vapor stream, and separate the cooled flue gas stream into a waste gas stream and a flue gas recirculation stream. The flow of the recirculated flue gas is increased with decreasing flow of the synthesis-gas product gas to obtain an approximately constant product vapor stream by increasing the second partial vapor stream.