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Class Information
Number: 208/214
Name: Mineral oils: processes and products > Refining > Sulfur removal (free or combined sulfur) > With hydrogen > With solid catalyst or absorbent > With hydrogen yielding material (h donor)
Description: Processes wherein an added hydrogen rich material is employed under conditions that hydrogen is generated or liberated during the process (hydrogen donor processes).

Patents under this class:

Patent Number Title Of Patent Date Issued
8480881 Synthesis of acidic silica to upgrade heavy feeds Jul. 9, 2013
8236262 Desulfurization materials Aug. 7, 2012
7833502 Integrated process for the production of hydrogen from hydrogen sulphide Nov. 16, 2010
7651606 Process for desulphurizing olefinic gasolines, comprising at least two distinct hydrodesulphurization steps Jan. 26, 2010
7588681 Systems, methods, and catalysts for producing a crude product Sep. 15, 2009
7384540 Two-step method for middle distillate hydrotreatment comprising two hydrogen recycling loops Jun. 10, 2008
6875340 Process for adsorptive desulfurization of light oil distillates Apr. 5, 2005
6835303 Method for reducing the sulfur content of a sulfur-containing hydrocarbon stream Dec. 28, 2004
6447673 Hydrofining process Sep. 10, 2002
6071402 Hydrodefining and hydrocracking catalyst comprising a mixed sulphide comprising sulphur, at least one group VB element and at least one group VIB element Jun. 6, 2000
5897768 Desulfurization process for removal of refractory organosulfur heterocycles from petroleum streams Apr. 27, 1999
5871637 Process for upgrading heavy oil using alkaline earth metal hydroxide Feb. 16, 1999
5730860 Process for desulfurizing gasoline and hydrocarbon feedstocks Mar. 24, 1998
5626742 Continuous in-situ process for upgrading heavy oil using aqueous base May. 6, 1997
5543036 Process for hydrotreating Aug. 6, 1996
4888029 Desulfurization of carbonaceous materials Dec. 19, 1989
4623445 Sodium tetrachloroaluminate catalyzed process for the molecular weight reduction of liquid hydrocarbons Nov. 18, 1986
4505810 Hydrogen tetrachloroaluminate as a co-catalyst with sodium tetrachloroaluminate for the conversion of heavy hydrocarbons Mar. 19, 1985
4504378 Sodium tetrachloroaluminate catalyzed process for the molecular weight reduction of liquid hydrocarbons Mar. 12, 1985
4454024 Hydroconversion process Jun. 12, 1984
4383916 Sweetening and desulfurizing sulfur-containing hydrocarbon streams May. 17, 1983
4329221 Upgrading of hydrocarbon feedstock May. 11, 1982
4303497 Desulfurization, demetalation and denitrogenation of coal Dec. 1, 1981
4293404 Dehydroxylation and/or demercaptolation of heavy petroleum oils Oct. 6, 1981
4193864 Residual oil desulfurization in multiple zones without concommitant increase in hydrogen consumption Mar. 18, 1980
4087348 Desulfurization and hydroconversion of residua with alkaline earth metal compounds and hydrogen May. 2, 1978
3970545 Hydrocarbon desulfurization utilizing a non-catalytic hydrogen donor step and an oxidation step Jul. 20, 1976

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