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Thermodynamic/environmental assessment of a CRGT system was carried out on an RB211 based compressor station. The configured cycle was evaluated using the commercial process simulation software ASPEN PLUS®. The results of the thermodynamic assessment are presented in terms of overall thermal efficiency, specific work, unit duties, conversion rates and other relevant parameters. The above were determined for varying fuel split ratios, steam to carbon ratios in the reformer, and part loads. Comparison between CRGT operation and STIG operation is given. A NOx model was also constructed based on a one dimensional model of the combustor using ASPEN PLUS® which showed substantial reduction of the NOx emissions from the CRGT as compared to the basic cycle. Additionally, the CRGT system is evaluated economically in terms of capital and operating costs of the added equipment to a typical compressor station operation. Preliminary results of these environmental and economic analysis are presented.

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