大規模氣化過程系統模擬、集成及優化基礎研究

張建勝 岳光溪 于廣鎖

摘 要：該研究主要進展包括：（1）建立了水煤漿水冷壁氣化爐降階模型，計算了氣化爐內溫度分布，水冷壁表面渣層厚度分布，以及水冷壁內溫度分布，同時模型計算量小，可以滿足在整體系統流程中的耦合優化計算；（2）開發了氣化島整體系統動態仿真機；（3）建立了工業多噴嘴對置式氣化爐的分區模型，模型計算快速，模擬結果經與工業氣化爐運行結果比較，模擬結果準確可靠；（4）通過對煤、煤灰、氣化生成灰渣以及廢水中氯元素含量的實驗分析以及熱力學分析，獲得了氣流床煤氣化過程中氯元素的遷移特性；（5）采用Aspen Plus建立了兩種以石油焦為原料的氣化制氫模擬流程，通過對兩個方案進行了模擬分析和評價，獲得了兩個方案的能量轉換熱效率和火用效率。

關鍵詞：降階模型 仿真機 分區模型 能量轉換

Abstract：Based on the task and objective of 2013 plan， the research works of this project was carried out by the researchers from commitment unit and all the works were organized and coordinated carefully. All the research woks of 2013 pan were finished and the objective were obtained. Based on reduced order model， the temperature distribution， the slag thickness on the membrane wall in the slurry feed membrane wall gasifier was calculated and the computational complexity was reduced too. A dynamic simulation model of the gasification island was built and the simulation results were verified by the commercial operation data. A zonal mode with fast calculation speed of opposed multi-burner gasifier was built， the model result was well agree with commercial operation data. The migration property of chloride in the coal during gasification process was obtained based on the experiment and thermodynamics analysis of the chloride in the coal， coal ash， coarse and fine ash after gasification process and the waste water. Two simulation models for hydrogen production using petroleum as feedstock were built using Aspen Plus， based on the analysis and evaluation of these two process， the thermal efficiency and exergy efficiency of energy conversion was calculated.

Key Words：Reduced order model；Simulator；Zonal model；Energy conversion

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