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Parallel alkylation reactions utilizing pressured vaporous isoparaffin for indirect heat exchange with fractionators and/or HF strippers
Parallel alkylation reactions utilizing pressured vaporous isoparaffin for indirect heat exchange with fractionators and/or HF strippers
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机译:利用加压的蒸汽异链烷烃与分馏塔和/或HF汽提塔进行间接热交换的平行烷基化反应
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摘要
A process is provided for the simultaneous and separate alkylation of an isoparaffin such as isobutane with different olefins, e. g., propylenes and butylenes in different zones with an HF acid catalyst comprising separating the hydrocarbon phase from each of the alkylation effluents, subjecting each hydrocarbon phase to separate HF stripping, fractionating the liquid phases removed from each of the HF stripping zones, pressurizing the vaporous isoparaffin stream recovered from fractionation and utilizing the pressurized vaporous streams for indirect heat exchange with HF strippers and fractionation zones prior to recycling through alkylation.
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