隨著石油、天然氣等能源的日益枯竭，如何淨潔利用蘊藏量最豐富的煤炭能源，將是未來能源發展之重要課題。由於煤炭氣化複循環發電技術(IGCC)無論在技術成熟性、能源效率及環保性能都是最卓越，因此將會是未來發電的主流，現在商業運轉之大型煤炭氣化複循環發電機組皆使用溼式商業化之除硫程序，然而溼式除硫必須用水來冷卻煤氣，使系統熱效率降低，為提高熱效率降低發電及環保成本，世界各國皆在研發尋找高溫下乾式除硫方法。
　　本研究探討以自行製備之ZnMn2O4/SiO2吸收劑來吸收處理硫化氫，研究成果分成下列幾點探討:
1. 負載於不同載體之鋅錳合金吸收劑之脫硫效能以負載於SiO2及ZrO2之吸收劑脫硫效果較好，負載於-Al2O3之吸收劑脫硫效果較差。
2. 新鮮吸收劑活性金屬之主要結構為ZnMn2O4晶相，而吸收劑脫硫後之晶相主要有ZnS、MnS及Mn0.6Zn0.4S，Mn0.6Zn0.4S之形成應為MnS及ZnS於高溫下反應所生成的。
3. 長期操作實驗部份，我們發現隨著脫硫－再生循環次數增加，利用率有逐漸下降之趨勢，由孔洞分析數據推論吸收劑再生後有燒結的情形，推測吸收劑利用率降低與BET表面積嚴重減少有關。
4. 以不同操作參數來觀察吸收劑利用率改變的情形，發現一氧化碳濃度增加、氫氣濃度減小吸收劑利用率提高，此現象與Water-shift reaction有關；而空間流速在3,000~15,000 ml∙hr-1∙g-1之間時脫硫容量受空間流速之影響並不顯著；硫化氫進流濃度及吸收劑粒徑大小則對吸收劑利用率無顯著之影響。
5. 由動力研究發現，第一型衰退模式較符合實驗數據，所求得之活化能為98.8 kJ/mole，碰撞因子A = 1. 9 × 1013。

　　Because of the energy of petroleum and natural gas are getting exhausted, therefore, how to use the most abundant energy of coal cleanly which is the most improtant project for energy development in the future. Such as the Integrated Gasification Combined Cycles (IGCC) possessing the excellent mature technology, energy efficiency and environmental performance will be the main technology for the electric power generation in the future. Nowadays, all commercial IGCC power plants utilize wet desulfurization processes to remove H2S from hot coal gas. However, coal gas was cooled by the wet processes would be decrease the thermal efficiency of the system significantly. Therefore, high-temperature removal of H2S techniques are the targets for the researchers in this field.
　　Desulfurization of hot coal gas using homemade ZnMn2O4/SiO2 sorbent in a fixed bed reactor was conducted in this study. The explanation of results can be divided into five major parts.
1. The ZnMn2O4 sorbent supported on SiO2 and ZrO2 exhibit higher sorbent utilization and the ZnMn2O4 sorbent supported on γ-Al2O3 exhibit the poor performance.
2. ZnMn2O4, is the major crystalline phase for the fresh sorbent. After sulfidation experiments, ZnS, MnS, and Mn0.6Zn0.4S are the distint products for the sulfided sorbent. The formation of Mn0.6Zn0.4S may be attributed to the reation between MnS and ZnS within high temperature.
3. The utilization of the sorbent decreases significantly while sulfuration-regeneration cycles increases. From the results of pore analyses, we found that sintering taked place during the regeneration process. For this reason, we infer that the reduction of the activity maybe associated with the loss of BET surface area.
4. The effects of operating factors, such as space velocity, CO inlet concentration, H2 inlet concentration and H2S inlet concentration on the removal of H2S were performed. The results show that the sorbent utilization increases with the CO concentration and decrease with the H2 concentration. This can be explained through the water-shift reaction. Space velocity between 3,000~15,000 ml•hr-1•g-1, H2S concentration between 5,000~20,000 ppm and particle size of the sorbent, however, maintains nearly constant sorbent utilization in the operation conditions.
5. In the operating range of this study, we can find that the deactivation model typeⅠ is the most suitable model to fit this study. We obtain the activation energy Ea = 98.8 kJ/mole, frequency factor A = 1.9 × 1013.

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