Catalytic Distillation Technologies

William M Cross, Jr

Lawrence A Smith, Jr

Gary G Podrebarac

A process for the production of jet and other heavy fuels, the process including: contacting at least one C3 to C5 isoalkanol with a first catalyst to convert at least a portion of the isoalkanol to isoalkene, isoalkene dimers, and water; contacting at least a portion of the isoalkene dimers with a second catalyst to convert at least a portion of the isoalkene dimers to isoalkene trimers; hydrotreating the isoalkene trimers to form isoalkanes useful as a jet fuel, kerosene, or other heavy fuels.

Production of jet and other heavy fuels from isobutanol

A process for the conversion of an alcohol to an olefin is disclosed. The process may include: contacting at least one C2 to C5 alcohol with an organic acid in the presence of an esterification catalyst to convert at least a portion of the at least one C2 to C5 alcohol and the organic acid to an ester; at least one of catalytically and thermally degrading the ester to form an organic acid and an olefin.

Process for the conversion of alcohols to olefins

A process for the dimerization of isoolefins is disclosed. The process may include: contacting an isoolefin with sulfurous acid in a reaction zone at conditions of temperature and pressure sufficient to dimerize at least a portion of the isoolefin.

Dimerization process

A process for paraffin alkylation of isoalkane with isoolefins in which an olefin component comprising oligomerized propylene, oligomerized isoolefin or mixtures thereof is fed to a paraffin alkylation unit wherein the dissociated olefin components forming the oligomers react with isoalkane to produce a reaction mixture containing an alkylate and unreacted isoalkane The reaction mixture is fractionally distilled to recover unreacted isoalkane as overheads and alkylate as bottoms. The stoichiometry of isoolefins to isoalkane in the alkylation unit is maintained by adjustment of the feed to the oligomerization, for example, by adding fresh isoalkane to the recovered, unreacted isoalkane from the alkylation unit being recycled to the oligomerization. Alternatively, a portion of the recovered unreacted isoalkane is dehydrogenation to an isoolefin which is added to the oligomerization.

Paraffin alkylation

A process for the alkylation of isobutane is disclosed wherein isobutane is fed to two separate alkylation systems. The effluent from the first alkylation system is fed to an interim debutanizer where the C's are separated from the alkylate product. The overhead Cproduct is then fed to the second alkylation system to provide the isobutane. The effluent from the second alkylation system is fed to a traditional deisobutanizer to prevent any build up of normal butanes in the system.

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Kemah, TX, United States of America

William M Cross, Jr