Modeling the performance, emissions, and cost of an entrained-flow gasification combined cycle system using ASPEN
Conference
·
OSTI ID:20002248
Gasification is globally emerging technology in commercial markets for the conversion of a variety of feedstocks, including coal, heavy residue oil, biomass, solid waste, and others, to a variety of products, including electricity, steam, sulfur, transportation fuels, and other chemicals. One of the most developed and versatile gasification technologies is based upon entrained-flow reactors, which typically employ high temperatures and therefore can gasify a broad range of materials. In this study, the authors focus on the development of a comprehensive performance, emissions, and cost model of a Texaco gasifier-based Integrated Gasification Combined Cycle (IGCC) system using ASPEN. ASPEN is a steady-state chemical process simulator. The comprehensive model enables the evaluation of the interactions among various process areas within the IGCC system, as well as the performance and cost of alternative system designs (e.g., based upon different gas turbine designs). The technical basis for the model is briefly presented. The key process area performance models are described, as is the framework for estimation of air pollutant emissions and the cost model. In the paper and presentation, an example case study of the system model is presented to illustrate the typical performance, emissions and cost of a coal-based system for the production of power and elemental sulfur byproduct. In the future work, the Texaco gasifier-based IGCC model will be used as a bench mark in comparisons with other coal-based power generation systems, models for many of which have been developed in previous work at both Carnegie Mellon University and NC State. Additional gasification systems models based upon entrained flow gasifiers are also under development. Thus, the model presented here is one of a set of complimentary models that enables comparisons of competing systems for strategic planning purposes.
- Research Organization:
- North Carolina State Univ., Raleigh, NC (US)
- OSTI ID:
- 20002248
- Report Number(s):
- CONF-990608--
- Country of Publication:
- United States
- Language:
- English
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