基于平衡模型的城市固体废物热解和气化的模拟分析和三元相图。
Simulation analysis and ternary diagram of municipal solid waste pyrolysis and gasification based on the equilibrium model.
机构信息
Tianjin Key Lab. of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; MOE Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, Tianjin 300350, China.
Tianjin Key Lab. of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
出版信息
Bioresour Technol. 2017 Jul;235:371-379. doi: 10.1016/j.biortech.2017.03.072. Epub 2017 Mar 15.
A self-sustained municipal solid waste (MSW) pyrolysis-gasification process with self-produced syngas as heat source was proposed and an equilibrium model was established to predict the syngas reuse rate considering variable MSW components. Simulation results indicated that for constant moisture (ash) content, with the increase of ash (moisture) content, syngas reuse rate gradually increased, and reached the maximum 100% when ash (moisture) content was 73.9% (60.4%). Novel ternary diagrams with moisture, ash and combustible as axes were proposed to predict the adaptability of the self-sustained process and syngas reuse rate for waste. For wastes of given components, its position in the ternary diagram can be determined and the syngas reuse rate can be obtained, which will provide guidance for system design. Assuming that the MSW was composed of 100% combustible content, ternary diagram shows that there was a minimum limiting value of 43.8% for the syngas reuse rate in the process.
提出了一种以自产合成气为热源的自维持城市固体废物（MSW）热解气化工艺，并建立了平衡模型，以预测考虑可变 MSW 成分的合成气再利用率。模拟结果表明，对于恒定的水分（灰分）含量，随着灰分（水分）含量的增加，合成气再利用率逐渐增加，当灰分（水分）含量达到 73.9%（60.4%）时，达到最大 100%。提出了以水分、灰分和可燃物为轴的新型三元图，以预测自维持过程和合成气再利用率对废物的适应性。对于给定成分的废物，可以确定其在三元图中的位置，并获得合成气再利用率，这将为系统设计提供指导。假设 MSW 由 100%可燃含量组成，三元图表明该过程中合成气再利用率的最小限值为 43.8%。
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