Conceptual design and integration of XTL plants
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abstract
Liquid transportation fuels may be produced through gas-to-liquid, coal-to-liquid, and biomass-to-liquid technologies, which are collectively referred to as XTL. The conceptual design and integration of XTL with focus on thermal conversion technologies are evaluated to establish benchmarks for the process and innovative ways in which the various technologies can be integrated. The performance benchmarks (targets) are identified ahead of detailed design. They also allow current process performance to be gauged against the established targets and determine how far from the targets the process is operating. A base case is used to develop insights into factors which reduce the production rate of liquid fuels and overall product yield of XTL processes. This work helps to identify areas for improvement and innovation including improved mass integration, e.g., feedstock utilization, reduced CO 2 emissions, and reduced hydrogen input, and better energy integration. A case study is used to illustrate the developed concepts. This is an abstract of a paper presented at the 2012 AIChE Spring National Meeting and 8th Global Congress on Process Safety (Houston, TX 4/1-5/2012).
