大規(guī)模氣化過程系統(tǒng)模擬、集成及優(yōu)化基礎(chǔ)研究
2016-08-13 17:02:25張建勝岳光溪于廣鎖
科技資訊 2016年5期
張建勝 岳光溪 于廣鎖
摘 要：該研究主要進(jìn)展包括：（1）建立了水煤漿水冷壁氣化爐降階模型，計(jì)算了氣化爐內(nèi)溫度分布，水冷壁表面渣層厚度分布，以及水冷壁內(nèi)溫度分布，同時(shí)模型計(jì)算量小，可以滿足在整體系統(tǒng)流程中的耦合優(yōu)化計(jì)算；（2）開發(fā)了氣化島整體系統(tǒng)動(dòng)態(tài)仿真機(jī)；（3）建立了工業(yè)多噴嘴對置式氣化爐的分區(qū)模型，模型計(jì)算快速，模擬結(jié)果經(jīng)與工業(yè)氣化爐運(yùn)行結(jié)果比較，模擬結(jié)果準(zhǔn)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(shí)驗(yàn)分析以及熱力學(xué)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(gè)方案進(jìn)行了模擬分析和評價(jià)，獲得了兩個(gè)方案的能量轉(zhuǎn)換熱效率和火用效率。
關(guān)鍵詞：降階模型 仿真機(jī) 分區(qū)模型 能量轉(zhuǎn)換
Fundamental Study on the Simulation， Integration and Optimization of Large Scale Gasification System
Zhang Jiansheng1 Yue Guangxi1 Yu Guangsuo2
（1.Tsinghua University；2.East China University of Science and Technology）
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；Zonalmodel；Energy conversion
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