کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1275046 1497553 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
H2 processes with CO2 mitigation: Thermo-economic modeling and process integration
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
H2 processes with CO2 mitigation: Thermo-economic modeling and process integration
چکیده انگلیسی

Within the challenge of greenhouse gas reduction, hydrogen is regarded as a promising decarbonized energy vector. The hydrogen production by natural gas reforming and lignocellulosic biomass gasification are systematically analyzed by developing thermo-economic models. Taking into account thermodynamic, economic and environmental factors, process options with CO2 mitigation are compared and optimized by combining flowsheeting with process integration, economic analysis and life cycle assessment in a multi-objective optimization framework. The systems performance is improved by introducing process integration maximizing the heat recovery and valorizing the waste heat. Energy efficiencies up to 80% and production costs of 12.5–42 $/GJH2GJH2 are computed for natural gas H2 processes compared to 60% and 29–61 $/GJH2GJH2 for biomass processes. Compared to processes without CO2 mitigation, the CO2 avoidance costs are in the range of 14–306 $/tCO2,avoidedtCO2,avoided. The study shows that the thermo-chemical H2 production has to be analyzed as a polygeneration unit producing hydrogen, captured CO2, heat and electricity.


► Thermo-economic models for the conceptual design of integrated H2 plants.
► Optimization of H2 and/or electricity generation with CO2 mitigation.
► Performance increased by optimal combined production of H2, heat and power.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 16, August 2012, Pages 11785–11795
نویسندگان
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