Chemical thermodynamics analysis for in-situ gasification chemical looping combustion of lignite with phosphogypsum for syngas

• Published in: Applied thermal engineering Vol. 112; pp. 516 - 522
• Main Authors: Yang, Jie, Ma, Liping, Tang, Jianxiao, Liu, Hongpan, Zhu, Bin, Lian, Yan, Cui, Xiaojing
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 05.02.2017; Elsevier BV
• Subjects: Calorific value; Carbon dioxide; Carbon monoxide; Chemical industry; Cold gas; Cold gas efficiency; Combustion; Fluidized bed combustion; Gas-solid reactions; Gasification; In-situ gasification chemical looping combustion (IG-CLC); Lignite; Lower heating value (LHV); Moisture; Phosphogypsum; Phosphoric acid; Raw materials; Studies; Sulfur; Syngas; Synthesis gas; Synthetic fuels; Thermodynamics; Thermodynamics analysis; Water vapor; China; In-situ gasification chemical looping combustion (IG-CLC); Phosphogypsum; Lower heating value (LHV); Cold gas efficiency; Thermodynamics analysis; Syngas

•The product of syngas mainly came from 〈CaSO4+4C→CaS+4CO〉 solid-solid reaction and 〈C+H2O(g)→CO+H2〉 gas-solid reaction.•Lower heating value (LHV) and cold gas efficiency were higher than 55000.00kJ/Nm3 and 63.00%, respectively.•Optimizing operation conditions were obtained using Factsage 6.4.•Theor...