Oxidative dehydrogenation of gaseous alkanes

Oxidative dehydrogenation of gaseous alkanes

F O C U S agreement, CCA will pay Clean Diesel an upfront licence fee for a nonexclusive licence, commit to further expenditures for development and v...

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F O C U S agreement, CCA will pay Clean Diesel an upfront licence fee for a nonexclusive licence, commit to further expenditures for development and verification under EPA and California Air Resources Board testing protocols, and pay Clean Diesel running royalties on system sales. CCA will be displaying its ELIM-NOx system at the Technology and Maintenance Council annual meeting in Florida during the week of 10 Mar 2003. Press release from: Clean Diesel Technologies Inc, 300, Atlantic Street, Suite 702, Stamford, CT 06901, USA. Tel: +1 203 327 7050. Fax: +1 203 323 0461. Website: http://www.cdti.com (11 Mar 2003)

Platinum Plus combined with specially catalyzed aftertreatment slash cost of diesel emission control Clean Diesel Technologies Inc (CDT) announced that new tests demonstrate that combining Platinum Plus, the company’s patented and EPA-registered fuel borne catalyst (FBC), with specially catalyzed aftertreatment devices produces dramatic reductions in diesel emissions on a type of engine commonly used in school buses and local delivery trucks. The testing was conducted at Southwest Research Institute of San Antonio, TX. Press release from: Clean Diesel Technologies Inc, 300, Atlantic Street, Suite 702, Stamford, CT 06901, USA. Tel: +1 203 327 7050. Fax: +1 203 323 0461. Website: http://www.cdti.com (28 Mar 2003)

Clean Diesel Technologies to supply Platinum Plus for reducing diesel particulate in mines Clean Diesel Technologies Inc (CDT) has received an order for its Platinum Plus fuel borne catalyst (FBC) and automatic dosing equipment for use with diesel particulate filters (DPF) on 30 diesel-powered units in underground mines. The order was received from a major mining engine distributor for use in an underground coal mine in Alabama. The Mining Safety Health Administration (MSHA) recently tested and confirmed the ability of the Platinum Plus FBC and a specially catalysed DPF to reduce particulates by 85% with no increase in emissions of nitrogen dioxide. The Platinum Plus FBC is registered with

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the US EPA for use in on-highway diesel fuel. Press release from: Clean Diesel Technologies Inc, 300, Atlantic Street, Suite 702, Stamford, CT 06901, USA. Tel: +1 203 327 7050. Fax: +1 203 323 0461. Website: http://www.cdti.com (18 Mar 2003)

Davison Clean Fuels Technologies profiled Davison Clean Fuels Technologies is profiled. A table presents an overview of the capabilities and application ranges of the various technology classes for sulfur reduction in gasoline. Strategies being developed by global refiners for meeting stringent environmental regulations are discussed. Catalysts and additives produced by Davison Clean Fuels Technologies are investigated.

Preparation of fluoro-olefins Fluoro-olefins are made by dehydrohalogenating the corresponding saturated fluoroalkanes using aqueous alkali and a phase-transfer catalyst. US 6,548,719, 15 Apr 2003, Honeywell, Morristown, NJ, USA

Oxidative carbonylation of toluene to p-toluic acid The solvent is trifluoroacetic acid; the catalyst is a rhodium salt such as the trifluoroacetate; the preferred oxidant is potassium peroxosulfate; and carbon monoxide must be present. Para selectivity can be up to 98%. US 6,548,698, 15 Apr 2003, E I DuPont de Nemours & Co, Wilmington, DE, USA

Chemical Week, 26 Mar 2003, 165 (12), 24

Oxidative dehydrogenation of gaseous alkanes

PTT plant to use advanced antipollution methods

The preferred catalyst is platinum, alloyed with Sn or Cu, in the absence of Pd or Rh, deposited on a ceramic monolith.

The world’s first world-scale polytrimethylene terephthalate (PTT) will open in 2003 in Montreal, Canada. The plant has a capacity of 95,000 tonne/y and is a jv between Shell Chemicals Canada and SGF Chemie (a subsidiary of Societé Générale de Financement du Quebec). The plant will use advanced anti-pollution methods including water treatment by bio-oxidation and catalytic air purification. Shell Chemicals Magazine, Winter 2003, 22 (Shell Chemicals Ltd, Shell Centre, London SE1 7NA, UK. Tel: +44 (0)207 934 4286. Fax: +44 (0)207 934 7703. Website: www.shell.com/chemicals)

PATENTS Nanoparticulate gold oxidation catalyst Nanoparticulate gold supported on hydrated titania is an active, selective catalyst for converting propylene to propylene oxide at only 46°C. The process uses molecular oxygen which may contain some hydrogen. Ethylene, propylene, 1-butene, and 2-butene behave similarly. US 6,548,682, 15 Apr 2003, Bayer AG, Leverkusen, Germany

US 6,548,447, 15 Apr 2003, University of Minnesota, Minneapolis, MN, USA

Cracking naphtha to light olefins The catalyst is a pentasil zeolite containing 0.1-10% phosphorus and Ga, Ge, &/or Sn as promoters. Only small quantities of methane and aromatic hydrocarbons are produced. US 6,548,725, 15 Apr 2003, BP Corp of North America, Chicago, IL, USA

Manufacture of diols from hydroxyaldehydes 1,3-diols are made by hydrogenating 1,3-hydroxyaldehydes using a supported copper metal catalyst. The hydrogen may be in the form of syngas. The type of the catalyst support is unimportant. US 6,548,716, 15 Apr 2003, Shell Oil Co, Houston, TX, USA

BOOKSHELF Encyclopedia of Catalysis Listed in the Jan 2003 issue of Focus on Catalysts. The hardback version is

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