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. 18, 2018
Filed:
Dec. 01, 2015
Applicant:
W. R. Grace & Co.-conn., Columbia, MD (US);
Inventors:
Dieter Wallenstein, Gau-Algesheim, DE;
Stefan Brandt, Nubloch, DE;
Assignee:
Grace GmbH, Worms, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G 11/18 (2006.01); G01N 13/00 (2006.01); G01N 15/08 (2006.01); G01N 30/89 (2006.01);
U.S. Cl.
CPC ...
C10G 11/187 (2013.01); G01N 13/00 (2013.01); G01N 15/082 (2013.01); G01N 30/89 (2013.01); C10G 2300/708 (2013.01); G01N 2013/003 (2013.01);
Abstract
Process for evaluating the catalytic performance of a porous solid using a vapor diffusion technique, where a probe molecule and a molecule for dead-time determination is injected into a carrier gas that is then contacted with the porous solid in a vessel, where a detector analyzes the peak width and retention time of a probe molecule and the retention time of the molecule for dead-time determination in the gas exiting the vessel.