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Class Information
Number: 585/440
Name: Chemistry of hydrocarbon compounds > Aromatic compound synthesis > Having alkenyl moiety, e.g., styrene, etc. > By dehydrogenation
Description: Subject matter in which hydrogen atoms are removed from a feedstock compound to produce the product.

Sub-classes under this class:

Class Number Class Name Patents
585/441 Plural stage or with plural separation procedures 82
585/443 Using elemental o 96
585/442 Using halogen or s 27
585/444 Using metal oxide, sulfide, or salt 230

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8710286 Oxidative coupling of hydrocarbons as heat source Apr. 29, 2014
8669406 Process for the preparation of hydrogenated hydrocarbon compounds Mar. 11, 2014
8653317 Dehydrogenation process and catalyst Feb. 18, 2014
8642826 Process for long-term operation of a continuous heterogeneously catalyzed partial dehydrogenation of a hydrocarbon to be dehydrogenated Feb. 4, 2014
8552237 Catalyst, its preparation and use Oct. 8, 2013
8450547 Process for cooling the stream leaving an ethylbenzene dehydrogenation reactor May. 28, 2013
8450543 Integrated methods of preparing renewable chemicals May. 28, 2013
8350109 Production of styrene from ethylbenzene using azeotropic vaporization and low overall water to ethylbenzene ratios Jan. 8, 2013
8269053 Process for toluene and methane coupling in a microreactor Sep. 18, 2012
8247627 Process for producing phenol and/or cyclohexanone Aug. 21, 2012
8237000 Combined carbon dioxide and oxygen process for ethylbenzene dehydrogenation to styrene Aug. 7, 2012
8193404 Use of a direct heating device with a reheater in a dehydrogenation unit Jun. 5, 2012
8178738 Method for extending catalyst life in processes for preparing vinyl aromatic hydrocarbons May. 15, 2012
8173852 Methods and apparatuses for producing styrene from ethylbenzene May. 8, 2012
8163971 Method of providing heat for chemical conversion and a process and system employing the method for the production of olefin Apr. 24, 2012
8084660 Use of direct heating device with a reheater in a dehydrogenation unit Dec. 27, 2011
7999144 Microchannel apparatus and methods of conducting catalyzed oxidative dehydrogenation Aug. 16, 2011
7985706 Uniformly, highly dispersed metal catalyst and process for producing the same Jul. 26, 2011
7981377 Dehydrogenation of alkyl aromatics Jul. 19, 2011
7964765 Styrene monomer process based on oxidative dehydrogenation of ethylbenzene using CO.sub.2 as a soft oxidant Jun. 21, 2011
7922980 EB/SM splitter heat recovery Apr. 12, 2011
7910784 Process for the production of styrene monomer by improving energy efficiency and injecting a recycle gas into the EB vaporizer Mar. 22, 2011
7847138 Process for making styrene using mircochannel process technology Dec. 7, 2010
7829155 Nanothin polymer coatings containing thiol and methods of use thereof Nov. 9, 2010
7790650 Catalyst comprising nanocarbon structures for the production of unsaturated hydrocarbons Sep. 7, 2010
7732653 Method for producing graphite nanocatalysts having improved catalytic properties Jun. 8, 2010
7728184 Process for the dehydrogenation of alkyl-aromatic hydrocarbons for the production of vinyl-aromatic monomers Jun. 1, 2010
7696394 Treatment of alkylation catalyst poisons with dehydrogenation Apr. 13, 2010
7687673 Process for reacting over two catalyst beds Mar. 30, 2010
7663009 Process for the manufacture of an alkenyl aromatic compound under low steam-to-oil process conditions Feb. 16, 2010
7642390 EB/SM splitter heat recovery Jan. 5, 2010
7569738 Method and apparatus for addition of aqueous solutions to high temperature processes Aug. 4, 2009
7357855 Reactor for chemical conversion of a feed with added heat, and crosswise flow of feed and catalyst Apr. 15, 2008
7319177 Process for producing cumene Jan. 15, 2008
7282619 Method of operating a dehydrogenation reactor system Oct. 16, 2007
7276636 Styrene process with recycle from dehydrogenation zone Oct. 2, 2007
7232848 Gas agitated multiphase reactor with stationary catalyst solid phase Jun. 19, 2007
7186395 Iron oxides with a higher degree of refining Mar. 6, 2007
7169960 Dehydrogenation process Jan. 30, 2007
7128826 Polymerization inhibitor for styrene dehydrogenation units Oct. 31, 2006
7094939 Styrene process with recycle from dehydrogenation zone Aug. 22, 2006
7038098 Method for dehydrogenating C.sub.2-C.sub.30-alkanes May. 2, 2006
7002052 Integrated process for producing an alkenyl-substituted aromatic compound Feb. 21, 2006
6984761 Co-production of phenol, acetone, .alpha.-methylstyrene and propylene oxide, and catalyst therefor Jan. 10, 2006
6936743 Method for extending catalyst life in processes for preparing vinyl aromatic hydrocarbons Aug. 30, 2005
6858769 Lithium aluminate layered catalyst and a selective oxidation process using the catalyst Feb. 22, 2005
6841712 Process for the dehydrogenation of ethylbenzene to styrene Jan. 11, 2005
6781024 Dehydrogenation process Aug. 24, 2004
6762335 Apparatus for dehydrogenation of ethylbenzene to styrene Jul. 13, 2004
6700030 Method for converting hydrocarbons in a three-phase reactor Mar. 2, 2004

1 2 3 4

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