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Design and Optimization FCCU Absorption-Stabilization System through Process Simulation

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Abstract:

In this preparation, FCCU main fractionator and corresponding absorption-stabilization system are systemically simulated on the basis of industrial data. Through analysis, a heat exchanging column is added to improve the flowsheet before rich gas cooler to make good use of heat of the compressed rich gas. To decrease LPG lost along with dry gas, a dry gas compression-expansion refrigeration circle is proposed to offer refrigeration capacity in place of the cooling water for the absorber pumparounds. Compared with the regular scheme, energy consumption and C3+ components in dry gas is reduced respectively by 17.18% and 7.16% and LPG yield is increased by 0.41% simultaneously.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

1400-1405

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.1400

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Online since:

December 2011

Authors:

Li Li Liu, Jin Sheng Sun, Lan Mei, Yan Hong Wang

Keywords:

Absorption-Stabilization, Energy Saving, FCCU, Process Design, Process Simulation

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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