Process Integration Using Block Superstructure

Jianping Li

doi:10.1021/acs.iecr.7b05180

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Process Integration Using Block Superstructure

2018-03-02

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Jianping Li

Salih Emre Demirel

M. M. Faruque Hasan *

DOI：10.1021/acs.iecr.7b05180

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Abstract

En 中文

We propose a general mathematical model for various process integration problems, involving mass integration, heat integration, simultaneous mass and heat integration, and property integration. The process units, including regenerators/interceptors, mixers, and splitters are represented using blocks. The blocks are arranged in a two-dimensional grid, and the arrangement of these blocks gives rise to various process integration networks. The existence of connecting streams between adjacent blocks and jump flows among all blocks enables the necessary interaction between different blocks via material and energy flows. The size of the block superstructure is determined by the number of layers with mixing operations, process units, product streams, and heat integration stages. The general process integration model is formulated as a mixed-integer nonlinear optimization (MINLP) problem with the minimization of total annual cost as the objective. We demonstrate our approach using four case studies from the process integration literature.

Keywords:

HEAT-EXCHANGER NETWORKS

SIMULTANEOUS-OPTIMIZATION MODELS

GRAPH-THEORETIC APPROACH

PROCESS WATER NETWORKS

PROCESS INTENSIFICATION

PROPERTY INTEGRATION

GLOBAL OPTIMIZATION

COMPONENTLESS DESIGN

BUILDING-BLOCKS

FRAMEWORK

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