Environmental concerns drive need for new fuels and more stringent lube quality. Recent advances from the American Auto/Oil Program showed that repairing high emitting vehicles is one of the most cost-effective means to reduce automotive pollution. New fuels (natural gas and oxygenates from FCC gasoline) and biodegradable lubricants are receiving increased attention. Paper 1: Recent Advances from the USA Auto/Oil Air Quality Research Program-ALLEN A. KOZINSKI, Amoco Oil Company, Chicago, Illinois, U.S.A. and DONALD K. LAWRENCE, Company, Naperville, Illinois, U.S.A. Q. A. Q. A. Q. A. Q. A. Q. A. Q- What were the other sources of ozone gener- ation cited in your paper? E. F. FREUND, Institut Francais du Petrole, France. Biogenic sources such as trees, and area sources such as barbecues, paint, etc. What model used for ozone calculations? ZEINER, Austria. Government models were used. The worst ozone episodes were modeled. We believe the trends are correct, if not the absolute levels. What range of MTBE studied? Unidentified questioner. Only 0% and 15% MTBE. Did you study lubricant effect on auto emis- sions? P. TIJM, Shell, U.K. No, not studied in the U.S. Auto/Oil Program. What is the impact of reducing Sulfur below 20 ppm? D. CHAPEL, Fluor, U.S.A. In general, the lower the better. Emissions con- tinue to decline consistently to 10 ppm, the limit of our tests. Would ozone in the lower atmosphere impact the upper atmosphere? BADAKHSHAN, Uni- versity of Canada. A. We did not study this, but would not expect it to. Paper 2: Production of TAME and Heavier Ethers to Achieve Higher Oxygen and Lower Olefins Content in Gasoline-JUHA J JAKKULA, Neste Oy, Porvoo, Finland; HARR1 JARVELIN, Neste Oy, Porvoo, Finland; JOUNI KIVI, Neste Oy, Porvoo, Finland. Q. Can your technology be used fur ZTBE? J. A. Yes. Q. Can side reactor concept be applied to an MTBE unit? R. DE LAS HERA, Repsor, Spain. A. Yes. Q. Were isomerization and alkylation integrated? Unidentified questioner. A. Not done yet, but could be. Q. Do you have commercial experience? T. S. R. PRASADA RAO, Indian Institute of Petroleum, India. A. We are building a unit at a Neste Oil refinery now. Q. Can you use C5-C, olefins? J. J. WISE, Mobil R&D Corp., U.S.A. A. We can alkylate all tertiary olefins. Paper 3: Use of Natural Gas as an Engine Fuel in France-GILLES G. ALLARD, Gaz de France, La Plaine Saint Denis, France; JEAN PREZAT, Gaz de France, La Plaine Saint Denis, France; JEAN CLAUDE GUIBET, Institut Francais du Petrole, Paris, France. Q. Do you study close coupled catalytic conver- tors? M. AOKI, Tonen, Japan. A. No. Q. Are auto manufacturers involved in the CNG program? Unidentified questioner. SOLIS, Spain. 123 A. Q. A. Q. A. Q. A. Q. A. Q- A. Q. A. Yes, in the R&D. Is storage of CNG

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