Inventor
DEZAEL CLAUDE
28 patents
Patents
28 patentsUS4609456ASep 2, 1986
Process for converting heavy petroleum residues to hydrogen and gaseous distillable hydrocarbons
INST FRANCAIS DU PETROLE115 citations96
US6114178ASep 5, 2000
Device for removing and/or injecting a fluid sample enabling the chemical and/or thermodynamic equilibrium to be preserved
INST FRANCAIS DU PETROLE54 citations92
US5935547AAug 10, 1999
Process for treating gas containing hydrogen sulfide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur
INST FRANCAIS DU PETROLE33 citations92
US4421725ADec 20, 1983
Process for purifying a gas containing hydrogen sulfide and carbon dioxide and apparatus therefor
INST FRANCAIS DU PETROLE31 citations92
US4163043AJul 31, 1979
Process for removing H2 S and CO2 from gases and regenerating the adsorbing solution
INST FRANCAIS DU PETROLE31 citations92
US4044114AAug 23, 1977
Process for purifying a gas containing sulfur compounds
INST FRANCAIS DU PETROLE32 citations92
US5951961ASep 14, 1999
Process for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a step for eliminating sulphur by cooling a gaseous effluent
INST FRANCAIS DU PETROLE16 citations82
US4310497AJan 12, 1982
Process for purifying a hydrogen sulfide containing gas
INST FRANCAIS DU PETROLE28 citations81
US4220634ASep 2, 1980
Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia
INST FRANCAIS DU PETROLE28 citations81
US5670123ASep 23, 1997
Process for the extraction of hydrogen sulphide from a gas mixture
INST FRANCAIS DU PETROLE19 citations80
US6627108B1Sep 30, 2003
Desulphurizing catalytic composition and its use in removing hydrogen sulphide and sulphur dioxide from a gas
INST FRANCAIS DU PETROLE8 citations74
US6309609B1Oct 30, 2001
Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur
INST FRANCAIS DU PETROLE7 citations74
US6210454B1Apr 3, 2001
Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide
INST FRANCAIS DU PETROLE10 citations74
US4048293ASep 13, 1977
Process for purifying a sulfur dioxide containing gas
INST FRANCAIS DU PETROLE12 citations74
US5059569AOct 22, 1991
Process and catalyst for selective reduction of nitrogen oxides
INST FRANCAIS DU PETROLE15 citations73
US4725417AFeb 16, 1988
Process for removing sulfur oxides from a gas by means of an absorption mass regenerable by reaction with hydrogen sulfide
INST FRANCAIS DU PETROLE16 citations73
US3943228AMar 9, 1976
Process for efficiently purifying industrial gas
INST FRANCAIS DU PETROLE8 citations72
US6413488B1Jul 2, 2002
Post conversion of a gas containing hydrogen sulphide, the elimination of sulphur crystallized by cooling
INST FRANCAIS DU PETROLE10 citations71
US3974258AAug 10, 1976
Process for purifying a sulfur dioxide containing gas
INST FRANCAIS DU PETROLE15 citations71
US6165436ADec 26, 2000
High-pressure sulfur recovery process
INST FRANCAIS DU PETROLE12 citations69
US4164543AAug 14, 1979
Process for regenerating brines containing sodium sulfites and sulfates
INST FRANCAIS DU PETROLE6 citations63
US4029745AJun 14, 1977
Process for reducing molten ammonium sulfates containing metallic impurities to ammonia and sulfur dioxide
INST FRANCAIS DU PETROLE2 citations63
US3966891AJun 29, 1976
Process for manufacturing sulfur from a solution of sodium sulfite
INST FRANCAIS DU PETROLE6 citations63
US3962410AJun 8, 1976
Process for purifying industrial gases containing hydrogen sulfide with sulfur production
INST FRANCAIS DU PETROLE6 citations63
US5458675AOct 17, 1995
Process for the treatment of ventilation air containing styrene
INST FRANCAIS DU PETROLE3 citations62
US4174383ANov 13, 1979
Process for purifying a sulfur dioxide containing gas with production of elemental sulfur
INST FRANCAIS DU PETROLE4 citations62
US4146579AMar 27, 1979
Process for converting sulfitic solutions by means of ammonium bisulfate with SO2 production
INST FRANCAIS DU PETROLE1 citations51
US3974257AAug 10, 1976
Process for removing sulfur dioxide contained in a gas
INST FRANCAIS DU PETROLE0 citations51