Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7763167 | Process for direct coal liquefaction Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liqui... | 07/27/2010 |
| 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 |
| 7076346 | Automated continuous haulage system The present invention relates to an automated continuous haulage apparatus and method designed for use in underground environments. Each mobile bridge carrier (10) contains distance measurement (70) and angular position (74) means for determinin... | 07/11/2006 |
| 6319395 | Process and apparatus for converting oil shale or tar sands to oil The invention relates to a continuous process for producing synthetic crude oil from oil bearing material, e.g., oil shale or tar sand, through continuous process for producing synthetic crude oil from bituminous tar sand or shale. The process includes tr... | 11/20/2001 |
| 5681452 | Process and apparatus for converting oil shale or tar sands to oil The invention relates to a continuous process for producing synthetic crude oil from oil bearing material, e.g., oil shale or tar sand, through continuous loading, calcining and unloading operations in three triangularly placed reactor tubes that are load... | 10/28/1997 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5009770 | Simultaneous upgrading and dedusting of liquid hydrocarbon feedstocks A process of concurrently dedusting and upgrading particulate laden raw, whole retort oil is provided which comprises the steps of: retorting solid hydrocarbon-containing material such as oil shale to liberate an effluent stream of dust laden hydrocarbons... | 04/23/1991 |
| 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 |
| 4946583 | Process for the liquefaction of coal In a process for the liquefaction of coal under increased pressure and temperature in a liquefaction zone, it is recommended that the liquefaction product exiting the liquefaction zone is fed into a coking area, there cooling the gases and vapors produced... | 08/07/1990 |
| 4795841 | Process for upgrading biomass pyrolyzates Pyrolyzate oil is made amendable to hydrotreatment without substantial coking problems by means of pre-treatment with hydrogen at temperatures in the range of 250° to 300° C.... | 01/03/1989 |
| 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 |
| 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 |
| 4696735 | Method and apparatus for multiphase coal hydrogenation reactors with exothermal heat of reaction having gas cooling in sump-phase reactors A practically isothermal temperature distribution of the reactor contents is obtained, especially for high temperature and pressurized hydrogenation reactors operating in the sump-phase by a hydrogenation gas passing over the outer region of the reaction ... | 09/29/1987 |
| 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 |
| 4617105 | Coal liquefaction process using pretreatment with a binary solvent mixture An improved process for thermal solvent refining or hydroliquefaction of non-anthracitic coal at elevated temperatures under hydrogen pressure in a hydrogen donor solvent comprises pretreating the coal with a binary mixture of an aromatic hydrocarbon and ... | 10/14/1986 |
| 4609455 | Coal liquefaction with preasphaltene recycle A coal liquefaction system is disclosed with a novel preasphaltene recycle from a supercritical extraction unit to the slurry mix tank wherein the recycle stream contains at least 90% preasphaltenes (benzene insoluble, pyridine soluble organics) with othe... | 09/02/1986 |
| 4605486 | Coal liquefaction process with increased naphtha yields An improved process for liquefying solid carbonaceous materials wherein the solid carbonaceous material is slurried with a suitable solvent and then subjected to liquefaction at elevated temperature and pressure to produce a normally gaseous product, a no... | 08/12/1986 |
| 4602992 | Coal hydrogenation process with integrated refining stage In accordance with the invention, during hydrogenation by means of sump phase hydrogenation followed by gas-phase hydrogenation, the high boiling fractions are separated from the lower boiling vapor fractions, after leaving the hot precipitation head, by ... | 07/29/1986 |
| 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 |
| 4547282 | Coal liquefaction and hydrogenation The coal liquefaction process disclosed uses three stages. The first stage is a liquefaction. The second and third stages are hydrogenation stages at different temperatures and in parallel or in series. One stage is within 650°-795° F. and optimizes sol... | 10/15/1985 |
| 4545890 | Coal liquefaction and hydrogenation Disclosed is a coal liquefaction process using two stages. The first stage liquefies the coal and maximizes the product while the second stage hydrocracks the remainder of the coal liquid to produce solvent.... | 10/08/1985 |
| 4536275 | Integrated two-stage coal liquefaction process This invention relates to an improved two-stage process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal.... | 08/20/1985 |
| 4522700 | Coal liquefaction In a two-stage liquefaction wherein coal, hydrogen and liquefaction solvent are contacted in a first thermal liquefaction zone, followed by recovery of an essentially ash free liquid and a pumpable stream of insoluble material, which includes 850° F.+ li... | 06/11/1985 |
| 4521291 | Coal extraction Coal is extracted using a mixed solvent which includes a substantially aromatic component and a substantially naphthenic component, at a temperature of 400° to 500° C. Although neither component is an especially good solvent for coal by itself, the use ... | 06/04/1985 |
| 4519895 | Process for converting a carbonaceous material to lower paraffinic hydrocarbons and monocyclic aromatic hydrocarbons A carbonaceous material is subjected, in admixture with a hydrogenated recycle oil, to hydrogenation in two successive steps at respective temperature ranges of 350°-470° C. and 600°-1000° C., under a pressure of at least 20 bars, the resulting p... | 05/28/1985 |
| 4510037 | Hydrogenation process for solid carbonaceous feed materials using thermal countercurrent flow reaction zone Thermal hydrogenation of solids-containing carbonaceous feed materials to produce hydrocarbon gaseous and liquid products is performed in a thermal reaction zone, in which the feed material flows generally downwardly countercurrent to upflowing hydrogen a... | 04/09/1985 |
| 4510040 | Coal liquefaction process This invention relates to an improved process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal. The claimed improved process includes the hydrocracking of the light SRC mixed with a suitable hydro... | 04/09/1985 |
| 4502940 | Method for extracting caking coals Caking coals can be solvent extracted in high yields without agglomeration by a first stage extraction of 380° C. to 420° C. and at a pressure above the critical pressure of the solvent, followed by a second stage at a temperature above the critical tem... | 03/05/1985 |
| 4493763 | Pretreatment of oil-shale for enhanced arsenic removal Disclosed is a method for pretreating oil-shale such that upon subsequent processing the shale-oil obtained is substantially free of arsenic. The pretreatment comprises heating the oil-shale in a reducing atmosphere at a temperature from about 200° C. to... | 01/15/1985 |
| 4491511 | Two-stage coal liquefaction process An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650°-850° F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the ... | 01/01/1985 |
| 4485008 | Liquefaction process An improved liquefaction process for solid carbonaceous materials wherein at least a portion of the liquefaction is accomplished in the presence of an added hydrogenation catalyst and a solvent containing at least 1.25 wt % donatable hydrogen and in the p... | 11/27/1984 |
| 4472264 | Process for converting solid carbonaceous materials to methane Process for converting solid carbonaceous materials to methane, comprising (a) converting the carbonaceous material by means of a reducing gas at 300°-500° C. to a semi-oily phase adapted to be pumped and atomized, (b) heating falling droplets of said s... | 09/18/1984 |
| 4468314 | Hydropyrolysis of carbonaceous material Disclosed is a process for converting solid carbonaceous material, such as coal and oil-shale, to a discriminate range of liquid and gaseous products, which process comprises treating the carbonaceous material with a hydrogen-containing gas at short gas a... | 08/28/1984 |
