| Patent Number |
Title Of Patent |
Date Issued |
| 4547284 |
Coke production |
October 15, 1985 |
| In the delayed coking of a coking feedstock wherein the feedstock is continuously heated in a coking heater and introduced into a coke drum, the heater is operated to provide a coke drum temperature of from 415.degree. to 455.degree. C., and, after filling of the drum to the desired |
| 4342642 |
Steam pyrolysis of hydrocarbons |
August 3, 1982 |
| A portion of a steam pyrolysis tubular coil, preferably the outlet portion, is provided with an insert to provide a radiation absorption surface within the tube. The insert is dimensioned to increase heat flux without adversely increasing pressure drop. A preferred insert has a central b |
| 4329525 |
Production of chlorinated compounds by use of molten salts |
May 11, 1982 |
| A compound is chlorinated with chlorine to produce chlorinated product and hydrogen chloride byproduct. Recovered hydrogen chloride byproduct is contacted with oxygen and a molten salt mixture containing the higher and lower valent chlorides of a multivalent metal, such as cuprous and cu |
| 4326853 |
Coke production from liquid derived from sub-bituminous and/or lignitic coal |
April 27, 1982 |
| In the liquefaction of a sub-bituminous and/or lignitic coal, an ash containing coal liquid is heated to a temperature of from 410.degree. C. to 450.degree. C., and delayed coked adiabatically at a pressure of from 15 psig to 120 psig to produce an ash containing soft coke, having a |
| 4316793 |
Hydroliquefaction of coal |
February 23, 1982 |
| Coal is catalytically hydroliquefied by passing coal dispersed in a liquefaction solvent and hydrogen upwardly through an expanded catalyst bed in a stream having a cross-sectional flow area of no greater than 255 inches square, with the stream through the catalyst bed having a length |
| 4316792 |
Hydroliquefaction of coal |
February 23, 1982 |
| Coal is catalytically hydroliquefied by passing coal dispersed in a liquefaction solvent and hydrogen upwardly through a plurality of parallel expanded catalyst beds, in a single reactor, in separate streams, each having a cross-sectional flow area of no greater than 255 inches square, |
| 4284781 |
Supported vanadia catalyst and use thereof for nitrile production |
August 18, 1981 |
| Vanadia supported on a silica-alumina or gamma-alumina support in an amount to provide a vanadia to support weight ratio ranging from about 0.3:1 to about 3:1 substantially entirely within the pores of the support, the vanadia having been placed in molten form substantially within the po |
| 4227995 |
Demetallization of hydrocarbon feedstock |
October 14, 1980 |
| A metal containing hydrocarbon feedstock, such as a heavy residue, is contacted with hydrogen and a material characterized by low porosity, less than 0.3 cc/gram; low surface area, less than 5 m.sup.2 /g; high average pore diameter, greater than 1,000 Angstroms; and a high distribution o |
| 4208191 |
Production of pipeline gas from coal |
June 17, 1980 |
| Acid gases are removed from a coal gasification gas, followed by contacting the gas with a reduced iron catalyst at conditions selected to primarily produce methane, and some olefins together with carbon dioxide as byproduct. After separation of carbon dioxide byproduct, the gas is c |
| 4207268 |
Oxychlorination of methane |
June 10, 1980 |
| Methane is oxychlorinated to one or more chlorinated methanes, without net production of carbon tetrachloride, by contacting methane and chlorine and/or hydrogen chloride with a molten mixture of cuprous chloride, cupric chloride, and copper oxychloride, in the presence of an amount of c |
| 4199434 |
Feedstock treatment |
April 22, 1980 |
| A pyrolysis fuel oil is treated by soaking in the presence of sulfur for a period of time sufficient to react the highly unsaturated compounds present in the oil, followed by heating the soaked fuel oil at a temperature of from 850.degree. F. to 1100.degree. F. and an outlet pressure |
| 4181601 |
Feed hydrotreating for improved thermal cracking |
January 1, 1980 |
| A pyrolysis feedstock, such as a gas oil feed, is hydrotreated in the presence of a bimetallic catalyst which has been promoted by the addition of chlorine and/or fluorine, preferably chlorine, followed by thermal cracking to increase the yields of light olefins and BTX. |
| 4148709 |
Hydroliquefaction of sub-bituminous and lignitic coals to heavy pitch |
April 10, 1979 |
| In the hydroliquefaction of a sub-bituminous and/or lignitic coal, the inlet temperature to the hydroliquefaction zone is maintained at a temperature higher than those previously employed by providing recycle of hot liquid from the outlet portion of the hydroliquefaction zone. In this |
| 4116967 |
Production of carboxylic acids from nitriles |
September 26, 1978 |
| A nitrile, such as terephthalonitrile is catalytically reacted with water, in the vapor phase, to produce a gaseous effluent containing the corresponding carboxylic acid, as well as unreacted nitrile, ammonia and water. The acid product is separated from the gas by sublimation, prefe |
| 4108798 |
Process for the production of petroleum coke |
August 22, 1978 |
| A high crystalline coke can be prepared by heat-soaking a petroleum feedstock in the presence of added dissolved sulfur, heating to effect controlled thermal cracking thereof, separating non-crystalline substances as pitch, recovering a heavy cokable residue from the pitch free feed, and |
| 4108761 |
Denitrification of carbonaceous feedstocks |
August 22, 1978 |
| A carbonaceous feedstock, obtained from either a petroleum or coal source, is hydrodenitrified by the use of a supported sulfided catalyst containing nickel, molybdenum and iron, with the molybdenum being present in an amount of from about 10% to about 20%, by weight, calculated as MoO.s |
| 4107222 |
Oxychlorination of methane |
August 15, 1978 |
| Methane is oxychlorinated to one or more chlorinated methanes, without net production of carbon tetrachloride, by contacting methane and chlorine and/or hydrogen chloride with a molten mixture of cuprous chloride, cupric chloride, and copper oxychloride, in the presence of an amount of c |
| 4092271 |
Supported vanadia catalyst for nitrile production and process for preparing the catalyst |
May 30, 1978 |
| Vanadia supported on a silica-alumina or gamma-alumina support in an amount to provide a vanadia to support weight ratio ranging from about 0.3:1 to about 3:1 substantially entirely within the pores of the support, the vanadia having been placed in molten form substantially within the po |
| 4061471 |
Molten salt lift gas system for production of chlorinated hydrocarbons |
December 6, 1977 |
| In the production of chlorinated hydrocarbons by the use of molten salts wherein molten salt is oxidized in a first reactor and lifted by lift gas in a first lift gas circuit into a chlorinated hydrocarbon production reactor, with the molten salt withdrawn from the chlorinated hydrocarbo |
| 4059503 |
Stripping ammonia from liquid effluent of a hydrodenitrification process |
November 22, 1977 |
| A nitrogen containing feedstock is hydrodenitrified by passing the feed through at least two hydrodenitrification zones, with ammonia produced in the hydrodenitrification being purged from the system prior to the last hydrodenitrification zone to maintain a low ammonia partial pressure i |
| 4045504 |
Coupling process |
August 30, 1977 |
| Process for coupling an alkane to either an alkane, alkene, aliphatic carboxylic acid, or aromatic hydrocarbon by effecting contacting thereof and a melt containing a multivalent metal halide in both its higher and lower valance state. In accordance with a preferred embodiment, the c |
| 4040957 |
Separation of insoluble material from coal liquefaction product by use of a diluent |
August 9, 1977 |
| Insoluble materials are separated from a coal liquefaction product having a quinoline insoluble content of greater than 15 wt. % by diluting the product with a diluent which is a solvent for the components which are quinoline soluble and benzene insoluble, with the diluent being added in |
| 4036897 |
Production of hexachlorocyclopentadiene |
July 19, 1977 |
| Hexachlorocyclopentadiene is produced by contacting pentane, pentene, cyclopentane or cyclopentene or chlorinated derivatives thereof with a molten salt mixture of cuprous and cupric chloride. Cyclopentadiene can also be employed as an initial feed, in which case the cyclopentadiene is |
| 4029474 |
Coal liquefaction reactor distribution system |
June 14, 1977 |
| A multi-channelled distribution network supplies hydrogen such that separated flows of hot coal paste and heated hydrogen meet in the restricted confines of a multitude of inverted caps to promote turbulent intermixing before the mixture enters the active bed of a coal liquefaction r |
| 4028221 |
Liquefaction of sub-bituminous and lignitic coal |
June 7, 1977 |
| In the liquefaction of a sub-bituminous and/or lignitic coal, prior to the liquefaction, the coal is soaked at a temperature of from 550.degree. to 750.degree. F and a pressure of from 30 to 300 psig for a time sufficient to remove at least 10% of the organic oxygen present in the coal t |
| 4009214 |
Separation of hydrogen fluoride from hydrogen chloride gas |
February 22, 1977 |
| Hydrogen chloride gas, containing hydrogen fluoride and/or silicon tetrafluoride, is contacted with calcium chloride supported on activated alumina, to separate the hydrogen fluoride and/or silicon tetrafluoride therefrom. |
| 4008241 |
Nicotinamide production |
February 15, 1977 |
| Nicotinamide is produced by aqueous ammonia hydrolysis of nicotinonitrile wherein the conversion is limited to at least 30% and no greater than 70%, with the nicotinonitrile concentration, expressed as weight product amide per 100 pounds of water, being at least 100 parts and no greater |
| 3974073 |
Coal liquefaction |
August 10, 1976 |
| Insoluble material is separated from a coal liquefaction product by gravity settling in at least two gravity settlers, with overflow from a previous settler being used as feed to the subsequent settler. A promoter liquid having characterization factor of at least 9.75, a 5 volume percent |
| 3968152 |
Production of aromatic carboxylic acids |
July 6, 1976 |
| Aromatic mono- and polycarboxylic acids are produced by hydrolyzing the corresponding mono- and polynitriles in aqueous slurry containing a catalyst, removing ammonia from the hydrolysis mixture by countercurrent stripping with steam, and cooling the hydrolysis product to separate the |
| 3965202 |
Production of trichloro-ethylene from waste C.sub.2 chlorinated hydrocarbons |
June 22, 1976 |
| All or a portion of chlorinated hydrocarbons convertible to trichloroethylene and/or perchloroethylene by chlorination, dehydrochlorination or dehydrogenation and optionally also dechloroination are recovered from a C.sub.2 chlorinated hydrocarbon waste stream and contacted with a mo |
| 3965194 |
Production of formaldehyde in carbon steel reactors |
June 22, 1976 |
| A carbon steel reactor can be used for producing formaldehyde from methanol by passivating the reactor with respect to formic acid production by treatment with either hydrogen sulfide in the absence of oxygen or a mixture of sulfur dioxide and oxygen. |
| 3962098 |
Gravity settling |
June 8, 1976 |
| Gravity settler comprised of a conical vessel positioned in the lower portion and surrounded by an ellipsoidal (preferably a sphere) housing whereby the settler has a spherically shaped upper portion and conically shaped lower portion. The settler is particularly suited for separating |
| 3954595 |
Coal liquefaction |
May 4, 1976 |
| Insoluble material is separated from a coal liquefaction product by gravity settling in the presence of a specified promoter liquid. The settling is effected to recover a net underflow having a specified ash content and the underflow is stripped of valuable products. By controlling the a |
| 3951862 |
Process for the preparation of ammonia synthesis catalyst |
April 20, 1976 |
| A process for the preparation of an ammonia synthesis catalyst, in which an iron oxide, together with traces of aluminum, calcium, potassium, magnesium and silicon oxides, is fused in the presence of a small quantity of graphite and reduced and the reduced catalyst is thereafter treated |
| 3949010 |
Production of chlorinated hydrocarbons |
April 6, 1976 |
| Oxidized molten chloride salts are employed for chlorinating and/or oxychlorinating a feed in a first reactor and then passed by gravity to a second reactor situated below the first reactor and operated at a pressure higher than the first reactor wherein the molten salt is oxidized. The |
| 3947489 |
Coupling process |
March 30, 1976 |
| Process for coupling an alkane to either an alkane, alkene, aliphatic carboxylic acid, or aromatic hydrocarbon by effecting contacting thereof and a melt containing a multivalent metal halide in both its higher and lower valence state. In accordance with a preferred embodiment, the c |
| 3939209 |
Acetaldehyde production |
February 17, 1976 |
| Acetaldehyde is produced from ethane by contacting ethane in the absence of added chlorine or hydrogen chloride with a molten mixture of the higher and lower valent form of a multivalent metal chloride and the oxychloride of the metal, such as a mixture of cuprous chloride, cupric chlori |
| 3933596 |
Desulfurization of coke |
January 20, 1976 |
| Coke is desulfurized by calcining coke at a temperature of 1600.degree. - 2200.degree. F. in admixture with sodium carbonate, followed by direct contact with phosgene or a mixture of carbon monoxide and chlorine at a temperature of 1200.degree. - 1800.degree. F. to produce coke having |
| 3932266 |
Synthetic crude from coal |
January 13, 1976 |
| Coal is hydroliquefied with the hydrogen consumption being limited to that required for effective liquefaction and/or deashing. Ash is removed and the liquid coal product hydrotreated in a second stage to produce synthetic crude. |
