Optimization of conversion of low hydrogen containing feedstocks using Rentech`s gas-to-liquids (GTL) technology
- Rentech, Inc., Denver, CO (United States)
The subject of this paper is to integrate existing technologies and available feedstocks to directly support the three defined thrusts of increased energy efficiency, decreased carbon intensity and carbon sequestration. The authors show that proper implementation of an iron based Fisher-Tropsch gas-to-liquids conversion process using the synthesis gas produced from coal by partial oxidation in conjunction with power generation will have a positive effect in reducing carbon emissions from fossil fuels. Integrating Rentech`s proprietary and patented gas-to-liquids (GTL) concept with power generation using both coal or coal and natural gas, an optimal fuel due to its lower carbon content, supports the concept of ``energyplexes.`` The goal of energyplexes are to combine power generation with the production of chemical feedstocks and/or transportation fuels to maximize carbon conversion, reduce carbon intensity and provide the initial step for carbon sequestration. The authors have evaluated several different technically viable flow schemes and compared the results to technology currently being utilized for electrical generation by turbines using steam generated from the combustion of coal and by modern coal fired combined cycle power plants. To develop the data for this paper Rentech utilized its internally generated computer model to simulate system containing a partial oxidation (POX) unit, an F-T module and various recycle loops. Verification of the POX model was achieved by comparing its results to those published by Texaco for identical feedstocks and similar operating conditions. For the Fischer-Tropsch results the authors relied exclusively on data developed by Rentech at pilot and commercial scale over a wide range of synthesis reactor operating conditions and for different hydrogen to carbon monoxide ratios of the synthesis gas utilized for conversion. For the coal feed utilized in this paper they used Pittsburgh No. 8 Coal.
- OSTI ID:
- 349067
- Report Number(s):
- CONF-980985-; ISBN 1-890977-15-2; TRN: IM9924%%67
- Resource Relation:
- Conference: 15. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 14-18 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of Fifteenth annual international Pittsburgh coal conference: Proceedings; PB: [1500] p.
- Country of Publication:
- United States
- Language:
- English
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