Snamprogetti

Enichem S.p.a

Alfredo Orsi

Renato Paludetto

Gianni Donati

Roberto Trotta

Gianni Pandolfi

Maura Brianti

Integrated process for the production of butene-1 which comprises feeding a C.sub.4 hydrocarbon stream to a separation unit of butene-1 and recycling the remaining stream to the same unit after treatment in a bond isomerization section to convert the remaining butenes-2 into butene-1, a molecular sieve separation unit is inserted in the cycle operating with the hydrocarbons in a vapour phase, for the purge of the paraffins.

Integrated process for the production of butene-1

An integrated process for the simultaneous production of alkyl tert-butyl ethers and 1-butene, comprising feeding a C.sub.4 hydrocarbon stream to an etherification unit and recycling the remaining stream to the same unit after possible separation of the 1-butene and treatment in an isomerization section to convert the remaining butenes into isobutene, a molecular sieve separation unit operating with the hydrocarbons in the vapour phase being incorporated into the cycle.

Integrated process for the simultaneous production of alkyl tert-butyl

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Corsico, Italy

Alfredo Orsi