Merichem Patents on US PTO Database

Invention Title Patent Number
Oxidizer and oxidation process for a desulphurization process 7,344,682
Oxidizer and oxidation process for a desulphurization process 7,279,148
Oxidizer and oxidation process for a desulphurization process 7,226,883
Composition and control method for treating hydrocarbon 7,029,573
Continuous liquid hydrocarbon treatment method 7,014,751
Naphtha desulfurization method 6,960,291
Liquid hydrocarbon treatment method 6,860,999
Indirect heating furnace 6,749,425
A Method for Continuously Producing Thiosulfate Ions. 6,083,472
Process for treating an effluent alkaline stream having sulfur-containing and phenolic compounds 5,997,731
Treatment of sour hydrocarbon distillate with continuous recausticization 5,961,819
Indirect-fired, all ceramic pyrochemical reactor 5,846,072
Recovery of para-ethylphenol 5,744,654
Removal of acidic organic contaminants from refinery waste water 5,705,074
Sulfur Separation System with Interface Control 5,651,896
Process and apparatus for oxidizing industrial spent caustic and effecting gas-liquid mass transfer and separation 5,395,517
Process and apparatus for oxidizing industrial spent caustic and effecting gas-liquid mass transfer and separation 5,354,482
Removal of hydrogen sulfide from sour water 5,286,389
Removal of guaiacol from cresylic acid by heating with a strong base 5,254,750
Method and Apparatus for Removal of H2S from a process gas, including thiosulfate and/or cyanide salt decomposition 5,215,728
Removal of guaiacol from cresylic acid feedstreams by heating with a strong acid 5,177,269
Removal of guaiacol from cresylic acid feedstreams 5,171,895
Process and Apparatus for Removal of H2S from a process gas including polyvalent metal removal and decomposition of salts and complexes 5,167,940
Continuous Autocirculation, Multiple Zone Mass Transfer Apparatus and Method 5,160,714
Pyrolysis of naturally occurring cresylic acid mixtures 5,146,010
Continuous Process for Mass Transfer of a Liquid Reagent with Two Different Gases 5,139,753
Process and Apparatus for Removal of H2S with Separate Absorber and Oxidizer and a Reaction Chamber Therebetween 5,126,118
Method and Apparatus for Removing H2S from a Process Gas and Recovering Sulfur 5,122,351
Neutral oil recovery process for the production of naphthenic acids 5,011,579
Method of impregnating a support material 4,956,325
Packing Support Grid 4,865,819
Removal of hydrogen sulfide from sour water 4,784,775
1,333,103
Treatment of sour hydrocarbon distillate 4,746,494
Method and apparatus for melting and recovering sulfur in aqueous slurries 4,730,369
1,260,230
249,671
Treatment of sour hydrocarbon distillate 4,675,100
Process for regenerating an alkaline stream containing mercaptan compounds 4,666,689
Hydrogen Sulfide Removal 4,622,212
1,227,783
Method for preparing elemental sulfur as a diffusion-resistant gas and methods for its use in making lime, sulfur dioxide and sulfuric acid from waste gypsum 4,520,002
Autocirculation Apparatus 4,482,524
Method of stabilizing chelated polyvalent metal solutions 4,455,287
Composition and method for removing H2S from gases (Use of Surfactants) 4,374,104
Autocirculation Process and Apparatus 4,238,462
2,084,043
1,159,434
Liquid sealing apparatus for sealing vapors in a tank 1,105,680
2,013,099
4,193,967
Catalytic removal of H2S from gases (Basic LO-CAT® Process) 4,189,462
Chelate oxidation of H2S in sour water 4,076,621
1,538,925
1,285,741
1,071,613
DE2606277
Process for the removal of H2S and mercaptans from liquid and gaseous streams 4,036,942
Process for the removal of H2S from gases (For Claus process tail gas) 4,014,983
Method of controlling the removal of H2S from gases 4,011,304
Process for the removal of H2S from gaseous streams by catalytic oxidation of H2S to sulfur 4,009,251
Mass transfer apparatus 3,992,156
Liquid-liquid mass transfer apparatus 3,977,829
Composition for catalytic removal of H2S from gases (Basic LO-CAT® CATALYST Formula) 1,285,741

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