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Class Information
Number: 585/263
Name: Chemistry of hydrocarbon compounds > Adding hydrogen to unsaturated bond of hydrocarbon, i.e., hydrogenation > With temperature or concentration gradient in reactor or specified provision for heating, cooling, or reactor control
Description: Subject matter wherein the temperature or concentration of reactants or composition of a catalyst changes gradually from one point to another in a hydrogenation reactor, wherein procedures for heating or cooling the reactor, reactants, catalyst, etc., are specified, wherein a test or measurement is made, or wherein a synthesis condition is varied in response to a change in a diverse condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7193120 |
Colloid-catalyzed gas transfer in supercritical phases |
Mar. 20, 2007 |
| 6822128 |
Flow control in a three-phase monolithic catalyst reactor |
Nov. 23, 2004 |
| 6365791 |
Process for converting hydrocarbons by treatment in a distillation zone comprising extracting a hydrocarbon cut as a side stream, associated with a reaction zone, and its use for hydrogenating |
Apr. 2, 2002 |
| 6238549 |
Process for converting hydrocarbons by treatment in a distillation zone associated with a reaction zone, comprising re-contacting a vapor distillate with the feed, and its use for hydrogenatin |
May. 29, 2001 |
| 6194623 |
Hydrogenation of organic compounds with the use of the NEMCA effect |
Feb. 27, 2001 |
| 6156933 |
Supercritical hydrogenation |
Dec. 5, 2000 |
| 6118034 |
Process for the selective hydrogenation of dienes in reformate flows |
Sep. 12, 2000 |
| 6084141 |
Hydrogenation process comprising a catalytic distillation zone comprising a reaction zone with distribution of hydrogen |
Jul. 4, 2000 |
| 6037510 |
Catalytic gas-phase hydrogenation of olefins |
Mar. 14, 2000 |
| 6011188 |
Multi-bed selective hydrogenation of acetylenes |
Jan. 4, 2000 |
| 5962755 |
Process for the isomerization of benzene containing feed streams |
Oct. 5, 1999 |
| 5817901 |
Selective hydrogenation of hydrocarbon cuts containing monounsaturated and polyunsaturated hydrocarbons |
Oct. 6, 1998 |
| 5763713 |
Process for the isomerization of benzene containing feed streams |
Jun. 9, 1998 |
| 5731485 |
Method of controlling a heater using heat flux ratios |
Mar. 24, 1998 |
| 4617110 |
Control of a hydrofining process for hydrocarbon-containing feed streams which process employs a hydrodemetallization reactor in series with a hydrodesulfurization reactor |
Oct. 14, 1986 |
| 4472264 |
Process for converting solid carbonaceous materials to methane |
Sep. 18, 1984 |
| 4367354 |
Temperature control of a selective hydrogenation process |
Jan. 4, 1983 |
| 4345915 |
Mixed feed evaporator |
Aug. 24, 1982 |
| 4251674 |
Method and apparatus for improving the selectivity of a process for hydrogenating acetylene to ethylene |
Feb. 17, 1981 |
| 4249908 |
Temperature control of exothermic reactions |
Feb. 10, 1981 |
| 4249907 |
Temperature control of exothermic reactions |
Feb. 10, 1981 |
| 4241230 |
Control system for the selective hydrogenation of acetylene present in ethylene product streams |
Dec. 23, 1980 |
| 4234314 |
Guard-bed vapor bypass to overcome pressure drop in mixed-phase reactions |
Nov. 18, 1980 |
| 4132530 |
Temperature control in exothermic/endothermic reaction systems |
Jan. 2, 1979 |
| 4129606 |
Temperature control of integrated fractionation column and reaction zone |
Dec. 12, 1978 |
| 4032591 |
Preparation of alpha-olefin oligomer synthetic lubricant |
Jun. 28, 1977 |
| 3947509 |
Method for preparation of hydrocarbon liquid polymers |
Mar. 30, 1976 |
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