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. 08, 2015
Filed:
May. 29, 2013
Entegris, Inc., Billerica, MA (US);
Shaun M. Wilson, Trumbull, CT (US);
Edward A. Sturm, New Milford, CT (US);
Michael J. Wodjenski, New Milford, CT (US);
J. Donald Carruthers, Fairfield, CT (US);
Joshua B. Sweeney, Katonah, NY (US);
ENTEGRIS, INC., Billerica, MA (US);
Abstract
A durable carbon pyrolyzate adsorbent having reversible sorptive affinity for hydrogen sulfide, and including the following characteristics: (a) a bulk density as measured by ASTM D2854 in a range of from 0.55 g/cc adsorbent to 1.25 g/cc adsorbent; (b) an HS capacity in a range of from 140 cc HS/g adsorbent to 250 cc HS/g adsorbent, at normal conditions (1 atm, 293.15° K); (c) an HS capacity in a range of from 1.0 cc HS/g adsorbent to 15.0 cc HS/g adsorbent, at partial pressure of 0.76 torr (101.3 Pa) (1000 ppm) of HS at 293.15° K; and (d) a single pellet radial crush strength in a range of from 7 kilopond (kP) to 40 kilopond (kP) as measured by ASTM D4179. Such adsorbent is usefully employed for capture of hydrogen sulfide from gases containing same, such as HS-containing gas associated with flowable hydrocarbonaceous material in refining operations, biogas produced by biomass digesters, gas mixtures produced by fluid catalytic cracking (FCC) units, and effluents from power plants gasifying sulfur-containing coal in an integrated gasification combined cycle (IGCC) process.