摘要
煤基SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)是把先進(jìn)的燃料電池技術(shù)與整體式煤氣化聯(lián)合循環(huán)技術(shù)相結(jié)合而成的先進(jìn)能源動(dòng)力系統(tǒng)，現(xiàn)在已進(jìn)入商業(yè)化示范運(yùn)營(yíng)階段。它是目前實(shí)現(xiàn)燃煤發(fā)電高效近零排放最先進(jìn)的發(fā)電系統(tǒng)之一，受到了世界各國(guó)的普遍關(guān)注。
本文對(duì)煤基SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)進(jìn)行了研究分析。第2章分析了未來(lái)清潔煤應(yīng)用的煤基多聯(lián)產(chǎn)系統(tǒng)和目前大型燃煤電站使用的IGCC發(fā)電系統(tǒng)，設(shè)計(jì)了以發(fā)電為主要目的的煤基SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)，對(duì)系統(tǒng)的發(fā)電過(guò)程進(jìn)行了分析和進(jìn)行了系統(tǒng)的主要設(shè)備選型。第3章就提高整體式煤氣化聯(lián)合循環(huán)（IGCC）系統(tǒng)的關(guān)鍵環(huán)節(jié)煤氣化與凈化系統(tǒng)進(jìn)行了研究，運(yùn)用ASPEN PLUS軟件建立了Texaco氣化爐模型，分析了水煤漿濃度、氧煤比、氧氣濃度對(duì)氣化爐的影響，最后運(yùn)用低溫甲醇洗法對(duì)德士古(Texaco)氣化爐產(chǎn)生的粗煤氣進(jìn)行了凈化。第4章針對(duì)煤基SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)中的SOFC部分運(yùn)用大型多物理場(chǎng)耦合軟件COMSOL進(jìn)行了平板式單體SOFC的流動(dòng)與傳熱模擬分析。第5章運(yùn)用ASPEN PLUS軟件建立了煤基SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)模型，設(shè)定參數(shù)計(jì)算后，得出SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)的發(fā)電功率比單個(gè)IGCC系統(tǒng)發(fā)電功率高出近10個(gè)百分點(diǎn)的結(jié)論。然后就影響SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)功率的參數(shù)SOFC堆運(yùn)行壓力、SOFC工作溫度、燃料利用率和燃?xì)廨啓C(jī)負(fù)荷進(jìn)行了分析，分析表明，提高SOFC堆的運(yùn)行壓力可以有效提高SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)的發(fā)電效率，SOFC的最適宜溫度是800℃-1000℃，系統(tǒng)的最佳燃料利用率在85%左右。

關(guān)鍵詞 SOFC；煤氣化；IGCC；聯(lián)合循環(huán)發(fā)電系統(tǒng)


Abstract
Coal-based SOFC/IGCC combined cycle power generation system is the advanced energy power system which has combined the advanced fuel cell technology with the overall style of gasification combined cycle. Now it has entered the operational phase of commercial demonstration. It is one of the world's most effective power generation systems in achieving near-zero coal-fired pollution, and has highly received the attention of countries all over the world.
This paper has studied and analyzed coal-based SOFC/IGCC combined cycle power generation system. The second chapter has analysed the coal polygeneration system of the future application of clean coal and the IGCC power generation system, designed the coal-based SOFC/IGCC combined cycle power generation system whose main purpose is to generate electricity, analyzed the generation process of the system, and did the systematic selection of the system's major equipment. The third chapter has studied on how to improve the gasification and purification for the key parts of integral combined cycle (IGCC) coal gasification power system, used ASPEN PLUS software to establish a Texaco gasifier model to analyze the coal slurry concentration, oxygen-coal ratio, the impact of oxygen concentration on the gasifier, and ultimately uses low-temperature methanol wash method to purify the crude gas produced by Texaco gasifier. The fourth chapter has focused on the SOFC part of the coal-based SOFC/IGCC Combined cycle power generation system to use the large-scale multi-physics coupling software COMSOL for the simulation analysis of flat SOFC unit's flow and heat transfer. The fifth chapter has used ASPEN PLUS software to establish a SOFC/IGCC combined cycle power system model. After setting the parameter and calculating, the result can be gotten that the generated output of SOFC/IGCC combined cycle power generation system is higher than a single IGCC power generation system by almost 10 percentage points. Then, it has analyzed the parameters of SOFC/IGCC combined cycle power generation system, such as the operating pressure of SOFC stack, the operating temperature of SOFC, fuel efficiency and gas turbine load factor. The analysis shows that improving the operating pressure of SOFC stack can improve the efficiency of SOFC/IGCC combined cycle power generation system; the most suitable temperature of SOFC is 800℃-1000℃, while the best fuel efficiency of the system is about 85%.
Keywords: SOFC; coal gasification; IGCC; combined cycle power generation system

目錄
摘要 I
ABSTRACT II
目錄 III
Contents V
第1章 緒論 1
1.1課題背景與實(shí)際意義 1
1.2國(guó)內(nèi)外發(fā)展現(xiàn)狀及存在的問(wèn)題 2
1.2.1 IGCC發(fā)展歷程 2
1.2.2 SOFC發(fā)展歷程 3
1.2.3 SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)研究動(dòng)態(tài) 5
1.2.4目前存在的問(wèn)題 7
1.3本文的主要研究工作 7
第2章SOFC/IGCC聯(lián)合循環(huán)系統(tǒng)設(shè)計(jì) 8
2.1煤基多聯(lián)產(chǎn)系統(tǒng)概述 8
2.2整體式煤氣化聯(lián)合循環(huán)發(fā)電系統(tǒng)(IGCC) 10
2.2.1整體式煤氣化聯(lián)合循環(huán)發(fā)電系統(tǒng)(IGCC)的概念 10
2.2.2整體式煤氣化聯(lián)合循環(huán)發(fā)電系統(tǒng)(IGCC)的特點(diǎn) 12
2.3 SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)設(shè)計(jì) 13
2.3.1 SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)概述 13
2.3.2 SOFC/IGCC聯(lián)合循環(huán)發(fā)電系統(tǒng)的主要設(shè)備選型 14
2.4 小結(jié) 16
第3章 德士古水煤漿氣化工藝研究 17
3.1德士古煤氣化工藝 17
3.2基于ASPEN PLUS的德士古氣化爐模型及運(yùn)行結(jié)果 19
3.2.1 基于ASPEN PLUS的德士古氣化爐模型 19
3.2.2氣化結(jié)果與分析 21
3.3煤氣凈化工藝 27
3.3.1煤氣凈化方法 27
3.3.2低溫甲醇洗法煤氣凈化工藝 28
3.4小結(jié) 29
第4章 板式固體氧化物燃料電池(SOFC)本體性能研究 31
4.1 SOFC模型的建立 31
4.1.1 SOFC模型假設(shè) 31
4.1.2 SOFC數(shù)學(xué)模型 32
4.2仿真結(jié)果與分析 33
4.3小結(jié) 37
第5章 SOFC/IGCC聯(lián)合循環(huán)系統(tǒng)性能分析 38-b..