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, 2011
Filed:
Feb. 01, 2010
Julien Grandjean, Lyons, FR;
Nicolas Ferrando, Suresnes, FR;
Abdelhakim Koudil, Lyons, FR;
P-louis Carrette, Lyons, FR;
Julien Grandjean, Lyons, FR;
Nicolas Ferrando, Suresnes, FR;
Abdelhakim Koudil, Lyons, FR;
P-Louis Carrette, Lyons, FR;
IFP Energies Nouvelles, Rueil Malmaison Cedex, FR;
Abstract
A process and apparatus for the treatment of a gas that contains hydrogen sulfide and sulfurous anhydride, in which: a) the gas () contacts with an organic solvent () containing a catalyst in a gas-liquid reactor-contactor () so as to recover separately liquid sulfur and; a gas effluent containing sulfur vapor; subjecting the gas effluent to a first condensation zone () operating at 70-100° C. to deposit the sulfur in solid form on sufficiently cold walls of the equipment in zone (), recovering resultant purified gas containing less than 30 ppm by volume of sulfur melting the deposited solid sulfur to regenerate the equipment, and recycling resultant liquefied sulfur to the reactor contactor.