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| Number | Title | Issue Date |
| 7749747 | Process for surface activation and/or devulcanisation of sulfur-vulcanized rubber particles Process for surface activation and/or devulcanization of sulfur-vulcanized rubber particles. In order to break the sulfur bridges and to reduce the sulfur, the rubber particles are treated in a biotechnological manner in a medium with mesophilic anaerobic and/or opt... | 07/06/2010 |
| 7416882 | Method of biotreatment for solid materials in a nonstirred surface bioreactor A method of biotreating a solid material to remove an undesired compound using a nonstirred surface bioreactor is provided. According to the method, the surface of a plurality of coarse substrates is coated with a solid material to be biotreated to form a plurality ... | 08/26/2008 |
| 7368297 | Method for forming catalytic sites at the surface of a support A method for forming catalytic sites at the surface of a support, which includes: depositing on the surface a liquid film (3) containing elements (4) of a living matter, capable of moving when subjected to an electric and/or magnetic field and designed... | 05/06/2008 |
| 7338795 | Biodesulfurization of hydrocarbons A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid ... | 03/04/2008 |
| 7329532 | Remediation of sulfur-containing pollutants with hydrocarbon-utilizing bacteria Methods and apparatus are disclosed for remediating sulfur-containing pollutants with a hydrocarbon that is used to stimulate the growth of hydrocarbon-utilizing bacteria. The hydrocarbon is preferably an alkane such as butane. The sulfur-containing pollutant may co... | 02/12/2008 |
| 7285697 | Reduction of total sulfur in crude and condensate cracking A process for cracking hydrocarbon feedstock comprising at least one sulfur-containing compound comprising: heating the feedstock and a peroxide-containing compound, mixing the heated feedstock and peroxide-containing compound with a fluid and/or a primary dilution ... | 10/23/2007 |
| 7267761 | Method of reducing sulfur in hydrocarbon feedstock using a membrane separation zone A membrane is used in combination with fractionation and hydrodesulfurization to reduce the sulfur content of hydrocarbon feeds, preferably sulfur-containing naphtha feeds. A membrane separation zone is employed to treat a fraction of effluent from a fractionation z... | 09/11/2007 |
| 7153414 | Process for the upgrading of raw hydrocarbon streams A process for the upgrading of raw hydrocarbon streams rich in heteroatomic polar compounds and/or unsaturated moieties involving the extractive oxidation of sulfur, nitrogen, conjugated dienes and other unsaturated compounds from said streams, the said process comp... | 12/26/2006 |
| 7101410 | Method for the microbiological desulfurization of fossil fuels A microbiological method of desulfurization (MDS) of hydrocarbon fuels such as coal, coal tar and petroleum uses an aqueous microbial biocatalytic agent which is not significantly reproducing but is still capable of oxidizing inorganic sulfur compounds and/or of sel... | 09/05/2006 |
| 7048846 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 05/23/2006 |
| 7041212 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 05/09/2006 |
| 7018527 | Membrane separation for sulfur reduction A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membrane having sufficient flux an... | 03/28/2006 |
| 7001504 | Method for extraction of organosulfur compounds from hydrocarbons using ionic liquids A process for the removal of organosulfur compounds from hydrocarbon materials is disclosed. The process includes contacting an ionic liquid with a hydrocarbon material to extract sulfur-containing compounds into the ionic liquid. The sulfur-containing compounds can... | 02/21/2006 |
| 6808919 | Biodesulfurization of hydrocarbons A process for treating liquid hydrocarbon, includes the steps of providing a liquid hydrocarbon containing complex sulfur-containing compounds, providing a bioactive material selected from or derived from members of genus Alcaligenes; and exposing the liquid hydroca... | 10/26/2004 |
| 6756022 | Apparatus for removing sulfur-containing component in fuel There is provided a desulphurization apparatus to be mounted in automobiles, which is arranged between a fuel tank and an injector of an engine, the apparatus comprising a combination of a sulfur-containing compound adsorbent for adsorbing and concentrating the sulf... | 06/29/2004 |
| 6638419 | Method for obtaining oil products with low sulphur content by desulfurization of extracts A method for obtaining oil products such as diesel fuel with improved quality, from a gas oil fraction containing organosulphur compounds such as dibenzenethiophenes and/or their derivatives, with initial and final boiling points generally ranging between... | 10/28/2003 |
| 6607903 | Genes encoding desulfurization enzymes This invention provides novel genes encoding enzymes which decompose difficult-to-decompose thiophene compounds. By using these genes, sulfur atoms can be released from the thiophene compounds in fossil fuel such as petroleum, and the diffusion of sulfur ... | 08/19/2003 |
| 6479271 | Genes encoding desulfurization enzymes This invention provides novel genes encoding enzymes which decompose difficult-to-decompose thiophene compounds. By using these genes, sulfur atoms can be released from the thiophene compounds in fossil fuel such as petroleum, and the diffusion of sulfur ... | 11/12/2002 |
| 6461859 | Enzymatic oxidation process for desulfurization of fossil fuels The invention relates to a method of removing thiophenic and organosulfide compounds from a fossil fuel comprising the steps of contacting the fossil fuel with hemoproteins, which oxidize the sulfur containing compounds to sulfoxides and sulfones in a rea... | 10/08/2002 |
| 6420158 | Gene encoding desulfurases This invention provides novel genes encoding enzymes which decompose difficult-to-decompose thiophene compounds. By using these genes, sulfur atoms can be released from the thiophene compounds in fossil fuel such as petroleum, and the diffusion of sulfur ... | 07/16/2002 |
| 6410304 | Method of biotreatment for solid materials in a nonstirred surface bioreactor A method of biotreating a solid material to remove an undesired compound using a nonstirred surface bioreactor is provided. According to the method the surface of a plurality of coarse substrates is coated with a solid material to be biotreated to form a ... | 06/25/2002 |
| 6407144 | Combination biological and microwave treatments of used rubber products A process and resulting product is provided in which a vulcanized solid particulate, such as vulcanized crumb rubber, has select chemical bonds altered by biotreatment with thermophillic microorganisms selected from natural isolates from hot sulfur spring... | 06/18/2002 |
| 6337204 | Biological culture containing Rhodococcus erythropolis erythropolis and/or Rhodococcus rhodnii and process for desulfurization of petroleum fraction This invention relates to a biological culture comprising at least one bacterial strain that is selected from the group that is formed by Rhodococcus erythropolis CNCM I-2204 Rhodococcus erythropolis CNCM I-2205 Rhodococcus erythropolis CNCM I-2207 Rhodococcus eryt... | 01/08/2002 |
| 6306288 | Process for removing sulfur compounds from hydrocarbon streams A process for removing H2 S and mercaptans from a hydrocarbon stream is disclosed. A hydrocarbon stream such as a LPG stream is contacted with a weakly basic stream, e.g., a sodium bicarbonate stream in order to extract the H2 S and ... | 10/23/2001 |
| 6274372 | Rhodococcus flavin reductase complementing DszA and DszC activity The invention provides a novel flavin reductase, which has been isolated from Rhodococcus strain sp. IGTS8 and purified to homogeneity. The flavin reductase is of use in the biocatalytic desulfurization of a fossil fuel containing organic sulfur compounds... | 08/14/2001 |
| 6235519 | Gene involved in thiophene biotransformation from nocardia asteroides KGB1 The present invention relates to an isolated nucleic acid molecule which encodes one or more of the enzymes which catalyze one or more steps in the desulfurization of thiophene, or a homologue or active fragment thereof. The invention also includes a reco... | 05/22/2001 |
| 6204046 | Gordona sp. CYKS1 (KCTC 0431BP) capable of desulfurizing fossil fuel containing organic sulfur compounds The present invention relates to Gordona sp. CYKS1 (KCTC 0431BP) capable of selective removal of organically bound sulfurs from carbonaceous fossil fuel such as petroleum and coal by cleaving bonds between carbon and sulfur atoms in the said sulfur-contai... | 03/20/2001 |
| 6197570 | Norcardia sp. CKYS2 ((KCTC 0432BP) capable of desulfurizing fossil fuel containing organic sulfur compounds The present invention relates to Nocardia sp. CYKS2 (KCTC 0432 Br) capable of selective removal of organically bound sulfurs from carbonaceous fossil fuel such as petroleum and coal by cleaving bonds between carbon and sulfur atoms in the said sulfur-cont... | 03/06/2001 |
| 6159726 | Method of biotreatment for solid materials in a nonstirred surface bioreactor A method of biotreating a solid material to remove an undesired compound using a nonstirred surface bioreactor is provided. According to the method the surface of a plurality of coarse substrates is coated with a solid material to be biotreated to form a ... | 12/12/2000 |
| 6130081 | High-temperature desulfurization by microorganisms The present invention relates to a method of degrading organic sulfur compounds, in which organic sulfur compounds are decomposed by a microorganism belonging to the genus Paenibacillus and having the ability to decompose organic sulfur compounds. Heteroc... | 10/10/2000 |
| 6124130 | Microbial catalyst for desulfurization of fossil fuels Sulfur is removed from fossil fuels containing sulfur by incubation of the fuel with microbes isolated and purified from soil or water that selectively extract the sulfur without apparently utilizing the fuel as a carbon or energy source. Preferred biodes... | 09/26/2000 |
| 6071738 | Conversion of organosulfur compounds to oxyorganosulfur compounds for desulfurization of fossil fuels The present invention relates to a method for the desulfurization of a fossil fuel containing one or more organosulfur compounds. In one embodiment, the method comprises the steps of (1) contacting the fossil fuel with a biocatalyst capable of converting ... | 06/06/2000 |
| 6051518 | Microbial process and composition for the regeneration of catalysts The present invention relates to a biological process for regenerating metal-containing sulfide mitigation catalysts that are commonly known in the natural gas processing industry as liquid redox catalysts. The invention further relates to a sulfide mitig... | 04/18/2000 |
| 5985650 | Method of desulfurization of fossil fuel with flavoprotein The invention relates to the discovery that the rate of reaction of the desulfurization of fossil fuels is enhanced by the addition of a flavoprotein to the biocatalyst. The invention is drawn to a method for enhancing the rate of desulfurizing a fossil f... | 11/16/1999 |
| 5968812 | Removal of sulfinic acids The invention relates to the unexpected discovery that the removal of the sulfinate group from an organosulfinate compound can be improved in the presence of an effective amount of a Lewis acid. The invention includes a method of removing the sulfinic aci... | 10/19/1999 |
| 5952208 | Dsz gene expression in pseudomonas hosts The present invention provides novel recombinant pseudomonads which contain a heterologous nucleic acid molecule comprising a nucleotide sequence encoding one or more desulfurization enzymes which are components of a biodesulfurization catalyst. The inven... | 09/14/1999 |
| 5925560 | High-temperature desulfurization by microorganisms The present invention relates to a method of degrading organic sulfur compounds, in which organic sulfur compounds are decomposed by a microorganism belonging to the genus Paenibacillus and having the ability to decompose organic sulfur compounds. Heteroc... | 07/20/1999 |
| 5910440 | Method for the removal of organic sulfur from carbonaceous materials A process to remove organic sulfur from organic compounds and organic carbonaceous fuel substrates containing sulfur compounds having sulfur-carbon bonds is disclosed. The steps of the process include oxidizing the sulfur species to the sulfone and/or sul... | 06/08/1999 |
| 5874295 | Arthrobacter sp. and its use for the desulfuration of fossil fuels The invention relates to a strain of Arthrobacter sp. CBS 208.96 capable of selectively effecting the opening of the C-S bond of sulfurated organic molecules present in carbonaceous materials and its use in a process for the selective removal of organic s... | 02/23/1999 |
| 5874294 | Biodesulfurization of fuels A simple and effective biochemical process solves the problems associated with sulfur in bitumen by removing sulfur from active participation in SOx -producing combustion reactions. In one aspect, an emulsion of bitumen and water is contacted w... | 02/23/1999 |
