June 2016

Process Engineering and Optimization

Secure the best benefits from C4 hydrocarbon processing—Part 1: Separation sequences

Crude C4 streams from the steam cracker unit or the fluidized catalytic cracker unit contain valuable hydrocarbons, such as butadiene and C4 olefins.

Streich, T., Kömpel, H., Geng, J., Renger, M., thyssenkrupp Industrial Solutions AG

Crude C4 streams from the steam cracker unit (SCU) or the fluidized catalytic cracker unit (FCCU) contain valuable hydrocarbons, such as butadiene and C4 olefins. The upgrading of such streams can be carried out with different processing routes. The upgrading process of C4 hydrocarbon streams is not standardized; a suitable route for each refinery must be studied individually. Both economic and environmental issues should be taken into account to achieve the best investment benefit. Advanced petrochemical plant design requires flexibility to match different situations, e.g., variation in feedstock. A comprehensive understanding of C4 hydrocarbon processing is prerequisite. This survey will

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