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| Number | Title | Issue Date |
| 7901569 | Process for upgrading heavy oil using a reactor with a novel reactor separation system Applicants have developed a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil, hydrogen, and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixtu... | 03/08/2011 |
| 7431831 | Integrated in-line pretreatment and heavy oil upgrading process A new residuum full hydroconversion slurry reactor system has been developed that allows the catalyst, unconverted oil, products and hydrogen to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is partial... | 10/07/2008 |
| 7390398 | Process for upgrading heavy oil using a highly active slurry catalyst composition Applicants have developed a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is parti... | 06/24/2008 |
| 7247235 | Hydrogenation of middle distillate using a counter-current reactor A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under hydrogenation reaction conditions in the presence of a hydrogenation catalyst in... | 07/24/2007 |
| 6190542 | Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds A multi-stage catalytic hydrogenation and hydroconversion process for heavy hydrocarbon feed materials such as coal, heavy petroleum fractions, and plastic waste materials. In the process, the feedstock is reacted in a first-stage, back-mixed catalytic re... | 02/20/2001 |
| 5269910 | Method of coil liquefaction by hydrogenation A method for hydro-liquefying coal, the method comprising preheating a slurried mixture of a pulverized coal and a solvent, the preheated mixture being supplied to a plurality of reactors; separating a gaseous content from the products resulting from the ... | 12/14/1993 |
| 5246570 | Coal liquefaction process using soluble molybdenum-containing organophosphorodithioate catalyst A coal liquefaction process employing a first stage liquefaction step catalyzed by a soluble molybdenum-containing organophosphorodithioate catalyst is disclosed. In some embodiments, two consecutive liquefaction steps employ a molybdenum-containing organ... | 09/21/1993 |
| 5200063 | Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide This invention is directed to a staged process for producing liquids from coal or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage. In the process, the feed is dispersed in an organic solvent and reacted with carbon monox... | 04/06/1993 |
| 5130013 | Process for producing a liquefied coal oil and a catalyst for the process A process for producing a liquefied coal oil by a two step hydrogenation reaction of coal, which comprises subjecting coal to a first hydrogenation and subjecting at least a part of the reaction product of the first hydrogenation to a second hydrogenation... | 07/14/1992 |
| 5122260 | Liquefaction of solid carbonaceous material with catalyst recycle In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a... | 06/16/1992 |
| 5120429 | Co-processing of carbonaceous solids and petroleum oil In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater. Coal may be co-processed with ... | 06/09/1992 |
| 5110451 | Coal extraction process A two stage coal extracting process has a first liquid hydrogen donor solvent oil extraction stage and a second stage comprising catalytic hydrocracking of the extract. Desired levels of hydrocracking and hydrogenation of the extract, with an acceptable l... | 05/05/1992 |
| 5110450 | Coal extract hydroconversion process comprising solvent enhanced carbon monoxide pretreatment An improved process for the hydroconversion of coal, wherein coal is slurried in an organic solvent and subjected to pretreatment with carbon monoxide, followed by separation of a solvent-soluble phase comprising hydrocarbon material from the coal, and su... | 05/05/1992 |
| 5096569 | Catalytic hydropyrolysis of carbonaceous material with char recycle Disclosed is a method for catalytically hydropyrolyzing carbonaceous material to produce liquid products boiling under about 550° C. with reduced amounts of methane being formed. The process comprises (a) treating the carbonaceous material with as hydrog... | 03/17/1992 |
| 5071540 | Coal hydroconversion process comprising solvent extraction and combined hydroconversion and upgrading An improved process for the hydroconversion of coal comprising pretreating coal in an aqeuous carbon monoxide-containing environment, followed by extracting a soluble hydrocarbon material from the coal, and subsequently hydroconverting the extracted mater... | 12/10/1991 |
| 5055181 | Hydropyrolysis-gasification of carbonaceous material Disclosed is a process for obtaining liquids and gases from carbonaceous material, such as coal. The carbonaceous material is first treated with a gasification catalyst, and optionally a hydrogenation catalyst, and hydropyrolyzed for an effective residenc... | 10/08/1991 |
| 5045180 | Catalytic two-stage coal liquefaction process having improved nitrogen removal A process for catalytic multi-stage hydrogenation and liquefaction of coal to produce high yields of low-boiling hydrocarbon liquids containing low concentrations of nitogen compounds. First stage catalytic reaction conditions are 700°-800° F. temperatu... | 09/03/1991 |
| 5026475 | Coal hydroconversion process comprising solvent extraction (OP-3472) An improved process for the hydroconversion of coal comprising pretreating coal in an aqueous carbon monoxide-containing environment, followed by extracting a soluble hydrocarbon material from the coal, and subsequently hydroconverting the extracted mater... | 06/25/1991 |
| 4983279 | Process for the hydrogenation of liquid charge materials which contain carbon A process for the hydrogenation of a liquid hydrocarbon-containing charge material, comprising the steps of: (i) supplying a high temperature high pressure liquid phase hydrogenation reactor with two separately and indirectly heated charge streams, (a) a ... | 01/08/1991 |
| 4982027 | Process for the reprocessing of carbon containing wastes This invention relates to an improved process for the reprocessing of carbon containing wastes by pretreating the same thermally in the presence or absence of hydrogen, followed by hydrogenation of the pretreated material at elevated temperature and at le... | 01/01/1991 |
| 4944866 | Process for the hydrogenation of coal A process for the hydrogenation of coal which entails slurrying pulverized coal with oil, hydrogenating the mixture at an elevated temperature and pressure and separating the liquid and solid reaction products from the gaseous reaction products, wherein t... | 07/31/1990 |
| 4879021 | Hydrogenation of coal and subsequent liquefaction of hydrogenated undissolved coal A process for the hydrogenation of undissolved coal and subsequent liquefaction of the hydrogenated coal particles to provide useful hydrocarbon liquid products including naphtha, gasoline and diesel fuel. These low boiling hydrocarbon liquids are produce... | 11/07/1989 |
| 4874506 | Catalytic two-stage coal hydrogenation process using extinction recycle of heavy liquid fraction A process for catalytic two-stage hydrogenation and liquefaction of coal with selective extinction recycle of all heavy liquid fractions boiling above a distillation cut point of about 600°-750° F. to produce increased yields of low-boiling hydrocarbon ... | 10/17/1989 |
| 4853111 | Two-stage co-processing of coal/oil feedstocks A process for two-stage catalytic co-processing of coal and heavy petroleum hydrocarbon liquid fractions to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal is slurried with a petroleum resi... | 08/01/1989 |
| 4842719 | Catalytic two-stage coal hydrogenation and hydroconversion process A process for two-stage catalytic hydrogenation and liquefaction of coal to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal is slurried with a process-derived liquid solvent and fed at temp... | 06/27/1989 |
| 4839030 | Coal liquefaction process utilizing coal/CO2 slurry feedstream A coal hydrogenation and liquefaction process in which particulate coal feed is pressurized to an intermediate pressure of at least 500 psig and slurried with CO2 liquid to provide a flowable coal/CO2 slurry feedstream, which is furt... | 06/13/1989 |
| 4818374 | Process for converting coal to an oil fraction A process for converting coal to an oil fraction, which comprises subjecting coal to a first hydrogenation reaction, deashing the reaction product of the first hydrogenation reaction and subjecting the deashed liquefied oil to a second hydrogenation react... | 04/04/1989 |
| 4816141 | Catalytic two-stage liquefaction of coal utilizing cascading of used ebullated-bed catalyst A multi-stage catalytic process for hydrogenation and liquefaction of coal using ebullated-bed catalytic reactors to produce low-boiling hydrocarbon liquid products, in which used catalyst is removed from a lower temperature first stage reactor operating ... | 03/28/1989 |
| 4741822 | Procedure for hydrogenation of coal by means of liquid phase and fixed-bed catalyst hydrogenation Procedure for hydrogenation of coal by means of liquid phase and fixed-bed catalyst hydrogenation whereby the head products of the high-temperature separator are led directly, and together with the entire high-pressure circuit gas, over a reactor with a r... | 05/03/1988 |
| 4740289 | Process for the hydrogenolysis of a coal liquid bottom A process for the hydrogenolysis of a coal liquid bottom containing benzene-insoluble components and having a boiling point of at least 420° C., which comprises: (a) hydrogenating the coal liquid bottom at a temperature of not higher than 350° C. in the... | 04/26/1988 |
| 4740294 | Method for sequentially co-processing heavy hydrocarbon and carbonaceous materials A method for sequentially co-processing heavy hydrocarbon materials and carbonaceous materials comprising first subjecting the heavy hydrocarbon material in the presence of a disposable metal catalyst to produce and separate therefrom a first distillate s... | 04/26/1988 |
| 4728418 | Process for the low-temperature depolymerization of coal and its conversion to a hydrocarbon oil A novel process for the low-temperature depolymerization and liquefaction of coal wherein the coal is subjected to sequential processing steps for the cleavage of different types of intercluster lnikages during each processing step. A metal chloride catal... | 03/01/1988 |
| 4714543 | Method of treating brown coal for liquefaction A starting slurry composed of raw brown coal and a solvent is heated and pressurized, subjected to gas-liquid separation and dehydration and then to hydrogenation/liquefaction. The CO2 -containing gas produced in the preheating/dehydration step... | 12/22/1987 |
| 4666589 | Method for pretreating feedstocks for coal hydrogenation A method for pretreating a coal hydrogenation feedstock with preheated hydrogen containing a hydrogenation gas under high pressure and at elevated temperature, in a liquid phase slurry system, is disclosed. In this process a mixture of a slurry of finely ... | 05/19/1987 |
| 4661237 | Process for thermal cracking of carbonaceous substances which increases gasoline fraction and light oil conversions A process for thermally cracking carbonaceous substances, such as coal, is described, comprising: rapidly heating the carbonaceous substance to 500° to 950° C. in an atmosphere consisting essentially of hydrogen gas at a pressure of 35 to 250 kg/cm... | 04/28/1987 |
| 4639310 | Process for the production of reformer feed and heating oil or diesel oil from coal by liquid-phase hydrogenation and subsequent gas-phase hydrogenation A process for the production of reformer feed and heating or diesel oil from coal which comprises introducing a pulverized coal-oil slurry together with a hydrogenation gas into a liquid-phase hydrogenation stage; remoping solids-containing residue from t... | 01/27/1987 |
| 4599161 | Retorting process with contaminant removal Hydrogen sulfide issuing from an oil shale retort is captured in an absorbent bed. When the bed is regenerated as with oxygen containing gas, the sulfur dioxide liberated is reintroduced into the retort for reaction with the spent shale.... | 07/08/1986 |
| 4595488 | Multistage process for the direct liquefaction of coal Moisture- and ash-free coking coal is micronized and admixed with a recycle oil, whereafter it is rapidly hydrogenated and one portion of the residue of the fractional distillation of the hydrogenation product is sent to hydrotreating, together with hydro... | 06/17/1986 |
| 4569749 | Coal liquefaction process A process for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved l... | 02/11/1986 |
| 4565622 | Method of liquefying brown coal A method for the liquefaction of brown coal which comprises effecting primary hydrogenation at a temperature and pressure sufficient to promote the efficient hydrogenation of a slurry prepared by adding an iron-based catalyst and a slurrying solvent to br... | 01/21/1986 |
