Synthesizing optimal flowsheets; Applications to IGCC system environmental control

Journal Article · Sat Aug 01 04:00:00 EDT 1992 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00008a014· OSTI ID:7015079

Diwekar, U M; Frey, A C; Rubin, E S ^[1]

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1. Carnegie-Mellon Univ., Pittsburgh, PA (United States). Dept. of Engineering and Public Policy

In this paper a new process synthesis capability implemented in the public version of the ASPEN chemical process simulator is demonstrated via an illustrative case study of a complex flowsheet. The objective of the case study is to minimize the cost of an advanced integrated gasification combined-cycle (IGCC) plant design featuring hot-gas cleanup, subject to environmental constraints. The problem is formulated as a mixed integer nonlinear programming (MINLP) optimization problem, involving the selection of both an optimal process configuration and optimal design parameters for that configuration. Performance and cost models of the IGCC system developed for the ASPEN simulator, along with the newly developed process synthesis capability, are used. As a first step, alternative in situ and external desulfurization are considered as process alternatives.

• OSTI ID: 7015079
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 31:8; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ANALOG SYSTEMS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBINED CYCLES
COST
DESIGN
DESULFURIZATION
DIAGRAMS
ENVIRONMENT
FLOWSHEETS
FUNCTIONAL MODELS
GASIFICATION
HOT GAS CLEANUP
NONLINEAR PROBLEMS
OPTIMIZATION
PERFORMANCE
PURIFICATION
SIMULATORS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC CYCLES