Chevron Research, development

Aromax (1) A catalytic process for converting light paraffins to benzene and toluene, using a zeolite catalyst. Developed by Chevron Research Technology Company. Installations were planned for Mississippi, Thailand, and Saudi Arabia. 

Chevron (2) A process for separating/i-xylene from its isomers by continuous crystallization, using liquid carbon dioxide in direct contact with the xylene as the refrigerant. Developed by the Chevron Research Company in 1966. 

Chevron WWT [Waste water treatment] An integrated process for treating sour water from oil refineries, particularly for removing ammonia, hydrogen sulfide, and carbon dioxide. Only physical processes are used—volatilization and condensation under various conditions. Developed by Chevron Research Company and used in 14 plants worldwide in 1985. Martinez, D., in Chemical Waste Handling and Treatment, Muller, K. R., Ed., Springer-Verlag, Berlin, 1986, 180. 

Isocracking A hydrocracking process developed and licensed by Chevron Research Company. The catalyst is nickel or cobalt sulfide on an aluminosilicate. First commercialized in 1962 more than 45 units had been built by 1994. See also Isomax. 

Isodewaxing A catalytic dewaxing process developed by Chevron Research Technology. It incorporates catalysts that achieve both wax isomerization and shape-selective cracking. 

Paragon A two-stage hydrocracking process, based on the zeolite ZSM-5, claimed to increase the yield and quality of the gasoline produced. Developed by Chevron Research Company, but not commercialized by 1991. 

RDS Isomax [Residuum desulphurization] A hydrodesulfurization process for removing sulfur compounds from petroleum residues, while converting the residues to fuel oil. Developed by Chevron Research Company in the early 1970s. Ten units were operating in 1988. See also VGO Isomax, VRDS Isomax. 

Rheniforming [Rhenium reforming] A catalytic reforming process developed by Chevron Research Company. The catalyst formulation includes rhenium. First announced in 1967 and first commercialized in 1970 by 1988, 73 units had been licensed. 

VGO Isomax [Vacuum gas oil] A hydrodesulfurization process adapted for treating vacuum gas oil, a petroleum fraction. Developed by Chevron Research Company in the early 1970s. In 1972, five plants were in operation and six were under construction. See also RDS Isomax and VRDS Isomax. 

VRDS Isomax [Vacuum residua desulphurization] A hydrodesulfurization process adapted for processing the residues from the vacuum distillation of the least volatile fraction of petroleum. An extension of the RDS Isomax process, developed and piloted by Chevron Research Company in the early 1970s. In 1988, one unit was under construction and one was being engineered. 

The authors are grateful to P. J. Angevine of Mobil Research and Development Corporation and R. L. Howell and J. G. Reynolds of Chevron Research Company for their careful review of the manuscript. Their comments and suggestions provided valuable guidance. 

The Chevron Chemical and Chevron Research Companies have conducted an extensive research and development program that has led... 

The proprietary process for making sulfur foam was developed at Chevron Research Co. and uses carbon dioxide as the preferred blowing... 

While the work described in this paper was originally intended to address Chevron Research Company s specialized needs in its role as a catalyst developer, manufacturer, and licensor several generally significant results were obtained. First, it is apparent that HDY s are now available with a very wide range of chemical and physical properties. While come may appear to be particularly well suited to a specific application, e.g., one where very high acidity (very low sodium content is desired, it is very clear that they may be extremely susceptible to structure loss in media commonly used in catalyst manufacturing. On thiB basis, chemical stability screening should certainly become a routine part of catalyst development work. 

Peter Grey, Mobil Research and Development Corp. Robert A. Hofstader, Exxon Research and Engineering Co. Henry E. Knauer, Mobil Research and Development Corp. John O. Larson, Chevron Research Co. 

The objectives of the Trace Metals Project, in which the Atlantic Richfield Co., Chevron Research Co., Exxon Research and Engineering Co., Mobil Research and Development Corp., and Phillips Petroleum Co. participated, were fourfold to define the current state of the art, to develop analytical methods for application at the part-per-billion level using techniques available at most laboratories (10 ppb, i.e., 10 ng/g, was chosen as a reasonable attainable improvement of existing technology), to determine the precision of the methods developed, and to publish the procedures and results. 

Support of the Department of Energy (DE-AC19-79BC 10082), National Science Foundation (NSF ENG-78-11776), Amoco Production, Chevron Oil Field Research, Exxon Research and Engineering, Gulf Research and Development, Marathon Oil, Mobil Research Development, Shell Development, Texaco, and Union Oil is gratefully acknowledged. We also thank Dr. I.B. Ivanov and Mr. K.P. Ananthapadmanabhan for helpful discussions. 

The 10 companies making up the Petroleum Environmental Research Forum 93-16 Project are Allied Signal Corporation Amoco Corporation Chevron Research and Technology Co. CHGO Petroleum Corporation Clark Oil and Refining Co. Exxon Research and Engineering Co. Marathon Corporation Mobil Research and Development Co. Phillips Petroleum Co. and Shell Research and Development Co. 

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