Institut Francais Du Pe'trole

Institut Francais Du Petrole, Des Carburants Et Lubrifiants Et

Francois Audibert

Andre Sugier

Hugo Van Landeghem, Deceased

Maurice Born

Xavier Marze

Pierre Trambouze

Hugo Van Landeghem

Daniel Defives

Improved process for manufacturing methanol by reacting carbon monoxide and/or carbon dioxide with hydrogen. The reactant gases circulate downwardly in admixture with a liquid phase of inert diluent through a methanol synthesis fixed bed catalyst. The superficial velocities of the gas phase and of the liquid phase are at least 1.5 cm per second, under the reaction conditions.

Process for operating highly exothermic reactions

Improved process for reacting carbon monoxide with hydrogen. The reactant gases circulate downwardly in admixture with a liquid phase of inert diluent through a fixed bed catalyst. The superficial velocity of each of the gas phase and the liquid phase is at least 1.5 cm per second, preferably 3 to 20 cm per second. The products are hydrocarbons, for example methane, or alcohols, for example methanol, depending on the catalyst.

The process of the invention comprises heating coarsely cut or whole used or waste tires in an oven while spraying thereon a stream of heavy oil, recycling at least a part of this oil and discharging the oil formed by decomposition of the tires as output product.

Process and apparatus for thermally converting used or waste tires to

Used lubricating oils are first heated to 200.degree.-500.degree. C, optionally with added steam, and then filtered through a membrane such as an ultra-filtration membrane. The latter has preferably a cut range of from 5,000 to 300,000.

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Ecully, France

Francois Audibert