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. 27, 2022
Filed:
Oct. 17, 2019
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Assignee:
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/04 (2006.01); B01J 20/20 (2006.01); B01J 20/30 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
B01J 20/20 (2013.01); B01D 53/04 (2013.01); B01J 20/2808 (2013.01); B01J 20/28061 (2013.01); B01J 20/28064 (2013.01); B01J 20/28071 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); B01D 2253/102 (2013.01); B01D 2253/304 (2013.01); B01D 2253/306 (2013.01); B01D 2253/311 (2013.01); B01D 2257/504 (2013.01);
Abstract
A method for producing a fluorinated carbon adsorbent which involves digesting rice husk, sulfonating the digested rice husk, and fluorinating the sulfonated rice husk. The method yields a fluorinated carbon adsorbent material having an adsorption capacity for COof 1.6 to 2.5 mmol/g, an adsorption capacity for CHof 0.4 to 0.8 mmol/g, and an adsorption capacity for Nof 0.1 to 0.4 mmol/g, at a temperature of 273 to 298 K and a pressure of 0.75 to 1.5 atm. Also disclosed is a method for separating a mixture of gases using the fluorinated carbon adsorbent.