【正文】 進能源轉(zhuǎn)化技術(shù)Figure New advanced energy conversion technology based on coal gasification 煤氣脫硫技術(shù)概況整體煤氣化聯(lián)合循環(huán)發(fā)電技術(shù)（IGCC）由于其潛在的對環(huán)境的友好性、經(jīng)濟性和高效性在世界范圍內(nèi)受到關(guān)注。多聯(lián)產(chǎn)煤炭轉(zhuǎn)化系統(tǒng)中各產(chǎn)品（電、熱、冷、化工產(chǎn)品）的生產(chǎn)過程不是簡單的疊加而是有機的耦合和集成，從而比各自單獨生產(chǎn)簡化工藝流程，減少基本投資和運行費用，降低產(chǎn)品價格，調(diào)節(jié)多個產(chǎn)品之間的產(chǎn)量，使得各流程優(yōu)化運行，減少污染 [10]。而煤氣化后，經(jīng)過凈化，除去煤氣中的硫化氫和粉塵，將固體燃料轉(zhuǎn)化成清潔的氣體燃料，直接進入燃氣透平進行一次發(fā)電，其排氣經(jīng)余熱鍋爐產(chǎn)生的高壓蒸汽可再驅(qū)動再熱式汽輪機透平發(fā)電，此即 IGCC 發(fā)電技術(shù) [9]。 [7]。近年來，發(fā)展經(jīng)濟，保護環(huán)境，實施可持續(xù)發(fā)展戰(zhàn)略已為全球關(guān)注，清潔生產(chǎn)亦為各國矚目，并被聯(lián)合國環(huán)境署列為一項優(yōu)先課題。在此形勢下，發(fā)揮我國煤炭資源優(yōu)勢，利用先進技術(shù)發(fā)展煤基能源化工，適當(dāng)緩解能源緊缺就成為國內(nèi)相關(guān)產(chǎn)業(yè)關(guān)注的熱點。從能源的生產(chǎn)與消費結(jié)構(gòu)看，煤炭占我國能源生產(chǎn)與消費的比例長期保持在70％左右 [3]，在未來的30－50年內(nèi)，我國以煤為主的能源結(jié)構(gòu)不僅不會改變，而且煤炭在未來能源體系中的地位將更為重要 [4]。 and the effects of the characteristics of sorbents and operating parameters on the desulfurization performance at lower temperature are less investigated. So the main objective of this research is to have a clear insight of the effects of physical and chemical properties of sorbents and operating parameters on desulfurization and regeneration performance , and to support the process development.The dissertation includes six chapters：Chapter Ⅰ covers the literature review and research needs. It provides an overview of wet desulfurization and dry desulfurization. And the advantages and disadvantages of the higher temperature desulfurization and the moderate and lower temperature desulfurization are mainly pared. The potential of developing the hot gas desulfurization with activated carbon (coke) is elucidated. Finally, the objective and the contents of the research are proposed.In chapter Ⅱ, the experimental apparatuses, measurement and analysis methods are described. In chapter Ⅲ, the effect of physical and chemical properties of sorbents on their desulfurization and regeneration performance is studied. With the aid of BET and XPS, it was found that there is no close relevancy among the desulfurization activity, texture parameters and oxygenic groups, but the desulfurization activity is dependent on the pore size distribution and alkaline on the surface.Chapter Ⅳ includes the investigation of the effects of sorbent modification on the desulfurization and regeneration properties. The active coke was modified by impregnant of Na2CO3 , K2CO3 with different concentrations and vanadiumcontained solution. It was found that all the modified active cokes have a higher sulfidation activity, but the regeneration performance of the active coke modified by Na2CO3 and K2CO3 is poor, and that modified by vanadiumcontained solution is better.Chapter Ⅴ investigates the effects of experimental parameters on desulfurization performance, including space velocity, ratio of O2/H2S , H2 and steam. Experimental results showed that the space velocity has less effects on desulfurization precision and sulfur capacity at the range of 2022~6000h1. Meanwhile, steam has a positive effect on desulfurization process, but H2 has a negative effect. When the ratio of O2/H2S is more than stoichiometric coefficient of chemical reaction, it has less effect on the desulfurization, but the formation of SO2 is increased. Finally, the test of sulfidationregeneration cycles of the sorbents were carried out.In chapter Ⅵ , major conclusions and suggestions for future research in this area are presented.Keywords：hot gas desulfurization, active carbon (coke), modification, H2S, catalytic oxidation目 錄摘 要 .................................................................IABSTRACT.............................................................III第一章 文獻綜述及課題選擇 ...............................................1 課題背景 ......................................................................................................................1 煤氣脫硫技術(shù)概況 ......................................................................................................2 濕法脫硫 ..............................................................................................................3 干法脫硫 ..............................................................................................................6 高溫干法脫硫 ..............................................................................................6 中低溫干法脫硫 ..........................................................................................9 課題選擇以及研究內(nèi)容 ............................................................................................15參考文獻 ...........................................................................................................................16第二章 實驗裝置及主要測試手段 ..........................................23 固定床脫硫/再生性能評價 ......................................................................................23 實驗裝置 ............................................................................................................23 反應(yīng)氣體的配制 ................................................................................................23 H2S 的檢測方法 ........................................................................................................24 比表面積和孔結(jié)構(gòu)分析 ............................................................................................25 活性焦表面堿性氧化物含量的測定 ........................................................................25 X 光電子能譜法（XPS）分析 ................................................................................26 熱天平分析 ................................................................................................................26 固相中硫的測定 ........................................................................................................26參考文獻 ...........................................................................................................................26第三章 活性炭（焦）的脫硫再生性能及其性質(zhì)表征 ..........................28 前言 ............................................................................................................................28 結(jié)果與討論 .....................................................................................