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Class Information
Number: 585/401
Name: Chemistry of hydrocarbon compounds > Aromatic compound synthesis > With measuring, sensing, testing, or synthesis operation control responsive to diverse condition
Description: Subject matter wherein the process involves a definitely recited step of measuring, analyzing, etc., a condition or parameter of the process or in which a condition of the synthesis operation, e.g., temperature, etc., is adjusted in accordance with a different aspect of the synthesis, e.g., strength of catalyst, etc.










Patents under this class:

Patent Number Title Of Patent Date Issued
6512156 Method and apparatus for controlling severity of cracking operations by near infrared analysis in the gas phase using fiber optics Jan. 28, 2003
6171449 Cascade reboiling of ethylbenzene/styrene columns Jan. 9, 2001
5767332 Process and apparatus for producing aromatic hydrocarbon composition Jun. 16, 1998
5731485 Method of controlling a heater using heat flux ratios Mar. 24, 1998
4891464 Control method for oxygen addition to oxidative reheat zone of hydrocarbon conversion process Jan. 2, 1990
4658073 Control system for multistage chemical upgrading Apr. 14, 1987
4544788 Control system for catalytic conversion of olefins to heavier hydrocarbons Oct. 1, 1985
4544781 Control of temperature exotherms in the conversion of methanol to gasoline hydrocarbons Oct. 1, 1985
4230894 Method for producing 3-alkylphenols and 1,3-hydroxybenzene Oct. 28, 1980
4207423 Acid type hydrocarbon alkylation with acid-soluble oil addition Jun. 10, 1980
4205196 Acid-type hydrocarbon alkylation with acid recycle streams at spaced points of a vertically-disposed elongated reactor May. 27, 1980
4180689 Process for converting C.sub.3 -C.sub.12 hydrocarbons to aromatics over gallia-activated zeolite Dec. 25, 1979
4132529 Temperature control in exothermic/endothermic reaction systems Jan. 2, 1979
4129606 Temperature control of integrated fractionation column and reaction zone Dec. 12, 1978
4101596 Low pressure xylene isomerization Jul. 18, 1978
4053531 Steam reforming of polycyclic hydrocarbons Oct. 11, 1977
4052476 Toluene disproportionation over zeolite catalyst Oct. 4, 1977
4052479 Conversion of methanol to olefinic components Oct. 4, 1977
4049739 Simulated moving bed alkylation process Sep. 20, 1977
4038334 Fractional distillation pressure control for separation of aromatic alkylation product Jul. 26, 1977











 
 
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