Abstract: The present invention is generally directed to triester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such triester-based lubricants utilize a biomass precursor comprising mono-unsaturated fatty acids, wherein such mono-unsaturated fatty acids are reduced to mono-unsaturated fatty alcohols en route to the synthesis of triester species for use as/in the triester-based lubricant compositions. Subsequent steps in such synthesis may employ carboxylic acids and/or acyl halides/anhydrides derived from biomass and/or Fischer-Tropsch synthesis.
Type:
Grant
Filed:
January 5, 2012
Date of Patent:
November 6, 2012
Assignee:
Chevron U.S.A. Inc.
Inventors:
Saleh A. Elomari, Stephen Joseph Miller, Zhen Zhou
Abstract: A sectioning device for use in dividing an engine part into sections for rating is provided. The sectioning device has a plurality of sectioners that are slidingly engaged in grooves of two separate plates, held together by at least a fastener. In operation, the sectioners can be adjusted to accommodate engine parts of different sizes, with minimal damages and losses of engine deposits in the rating process.
Abstract: An aqueous heat transfer fluid comprising a C3 carboxylate freezing point depressant, either solely or in combination with C3-C5 carboxylate freezing point depressants, in combination with C6-C16 organic acid salt corrosion inhibitors, provides an antifreeze/coolant composition wherein the corrosion inhibitors exhibit uniquely enhanced solubility, especially at low temperatures, in synergistic combination with the selected carboxylate freezing point depressants.
Type:
Grant
Filed:
December 22, 2006
Date of Patent:
December 29, 2009
Assignee:
Texaco Inc.
Inventors:
Jean-Pierre L. Maes, Jurgen P. De Kimpe, Steven Poppe
Abstract: Disclosed is a fluid catalytic cracking process using a catalyst composite comprised of an alumina-on-silica material, an inorganic refractory oxide, and optionally a zeolite material. The alumina-on-silica material is comprised of silica particles with surface bound aluminum groups chemically bonded to the silica surface through surface oxygen atoms, which material is dispersed in a matrix of a refractory oxide.
Type:
Grant
Filed:
June 25, 1990
Date of Patent:
December 24, 1991
Assignee:
Exxon Research and Engineering Company
Inventors:
Claude C. Culross, Gordon F. Stuntz, William E. Winter