Chevron patent

While the structure of beta was being investigated, new uses for this zeolite were being discovered. A major breakthrough came in late 1988 when workers at Chevron invented a liquid phase alkylation process using beta zeolite catalyst. Chevron patented the process in 1990. While Chevron had significant commercial experience with the use of Y (FAU) zeolite in liquid phase aromatic alkylation. Chevron quickly recognized the benefits of beta over Y as well and other... 

The Octane Requirement Increase, ORI, is a phenomenon manifested by the appearance of knocking and is due to the increase in engine octane demand with time. This phenomenon is correlated with the increase of solid deposits in the combustion chamber. Although the causes have not been determined with certainty, some companies have patented additives which modify the deposits. The effect is to limit the increase in octane demand (Bert et al., 1983 Chevron, 1988 Nelson et al., 1989). 

Quill was founded in April 1999 as an industrial consortium, with members from all sectors of the chemical industry. It is based on the well-proven industry/uni-versity cooperative research center (lUCRC) concept developed by the U.S. National Science Foundation and is only the second lUCRC in Europe. There were 17 founding industrial members of the Quill consortium, and the current membership includes (listed alphabetically) bp. Chevron, Cytec, DuPont, Eastman Chemicals, ICI, Invista, Merck, Novartis, Procter and Gamble, SACHEM, SASOL, Shell, Strata, and UOP. Research carried out between QUB and individual companies, or by QUILL itself, has generated more than 20 patent applications, many of which have now been published, from as diverse a range of industries as BNFL, BP Chemicals, Cytec, ICI, Quest International, and Uni-chema Chemie BV. In a recent report in Nature, the need for collaboration between government, industry, and academic institutions to form sustainable chemistry centers was stressed as vital in order to rethink traditional chemistry processes to be not only beneficial to the environment but also to make economic sense for industry. Quill, under the codirection of Professors Kenneth R. Seddon and Jim Swindall OBE, is one of these chemistry centers, and is the first (and... 

Chevron Philhps Chemical Company LP, Raman spectrometry for monitoring and control of slurry processes for polymerizing olehns. Inventor D.R. Battiste. 20 Apr 2004. 11 pp. (inch 1 fig.). Appl. 3 Nov 2000. Int. Cl. C08F 2/14. US Patent Specification 6,723,804 B1... 

Chevron Phillips Chemical Company LP, Spectroscopic method and apparatus for monitoring polyolefin production. Inventor D.R. Battiste. 1 Jan 2008. 47 pp. (inch 31 Hg.). Appl. 24 Sep 2004. Int. Cl. COIN 21/65 GOIJ 3/44. US Patent Specification 7,315,369 B2... 

C.D. Stokes, R.F. Storey, and J.J. Harrison, Process for preparing terminally functionalized living and quasiliving cationic telechelic polymers, US Patent 7 576161, assigned to Chevron Oronite Company LLC (San Ramon, CA) and The University of Southern Mississippi (Hattiesburg, MS), August 18,2009. 

J.J. Harrison, Novel polymeric dispersants having alternating polyalk-ylene and succinic groups, WO Patent 9 003 359, assigned to Chevron Res., April 05,1990. 

J.J. Harrison and J. Ruhe, William R., Dispersant polysuccinimides derived from terpolymers, EP Patent 0831104, assigned to Chevron Chem. Co., March 25,1998. 

Ammonia Recovery Process, Chevron Research Co., U. S. Patent... 

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