高溫同時去除粒狀物及硫化物可提高能源效率，本研究項目包括：（1）奈米或分子簇在高溫除硫之化學結構研究；（2）研發新型Raney態高溫脫硫吸附劑；（3）高溫同步脫硫除塵研究；及（4）基本工程設計。
程溫硫化（TPS）結果顯示， ZnO/TiO2於較高溫度發生硫化（＞960 K）但氧化再生則在較低溫（＜650 K）進行，可能是ZnO與TiO2涉化學反應；分子簇ZnO （ZnO/MCM-41）則於較低溫硫化（703-823 K）並於較高溫（920-1030 K）氧化再生。
Raney copper及iron之高溫脫硫研究，結果顯示ZnO/R-Fe2O3及CuO/R-Fe2O3 之除硫利用率（34-43%）隨溫度而上升，但ZnO/R-CuO於高溫較不穩定（＞1073 K）。XANES光譜顯示吸收劑中之CuO與CuO以二價態為主，並顯示有大於94%之吸收劑被氧化再生。EXAFS 數據顯示於硫化反應中，Cu-Cu鍵距減少0.11 Å，Zn-Zn則增加0.06 Å。經由計算在873 K之下，ZnO/R-CuO具有較大之硫化速率。ZnO/R-CuO、ZnO/R-Fe2O3、CuO/R-Fe2O3之活化能則分別為114.8, 155.8 and 89.4 kJ/mol。
加入30%之氧化銅及氧化鋅於陶瓷過濾網可同時去除硫化氫及粒狀物。氧化鋅及氧化銅之除硫轉化率約為55-63%，並可有效去粒狀物達95%以上。實驗顯示，加入吸收劑幾不影響陶瓷過濾網之粒狀物去除率。根據XANES圖譜在ZnO/CF 及CuO/CF中，大於92%除硫吸收劑氧化再生（873 K）。
由文獻指出，同步脫硫除塵系統可有效提升IGCC之熱能利用率達6%。因此跟據實驗術結果之基本數據，初步設計高溫（873 K）脫硫除塵整合系統，以提供一經濟有效之方法。

Simultaneous desulfurization and removals of particulates in the high temperature raw syngas can highly improve thermal efficiencies of integrated gasification combined cycle (IGCC). The main objective of this work was to study: (1) speciation of nano ZnO during high-temperature, (2) high-temperature desulfurization with ZnO and CuO in Raney CuO or Fe2O3, (3) simultaneous high-temperature desulfurization and particulates control with ZnO and CuO on ceramic filters and (4) basic engineering design for simultaneous desulfurization and removals of particulates at high temperatures.
Experimentally, TPS (temperature programmed sulfurization) and TPO (temperature programmed oxidization) data indicated that nano ZnO could be effectively sulfurized at 873 K and regenerated (with air) at 950 K. ZnO/TiO2 (with strong metal-support interactions (SMSI)) could be sulfurized at >960 K, and interestingly, regenerated at much lower temperatures (e.g., <650 K). On the contrary, ZnO clusters (sub-nano) could be sulfurized at lower temperatures (703-823 K) and oxidized at higher temperatures (920-1030 K).
Speciation of ZnO/R-CuO, ZnO/R-Fe2O3 and CuO/R-Fe2O3 in sulfurization and regeneration of zinc and copper was studied by XANES. Mainly, Zn(II) and Cu(II) were found in ZnO/R-CuO. The least-square fits of the XANES spectra suggested that the regeneration ratio of ZnO/R-CuO was ZnO (97%) and CuO (97%). 95% ZnO and 94% CuO in regenerated ZnO or CuO/R-Fe2O3 were also observed. The degree of sulfurization for ZnO/R-Fe2O3 and CuO/R-Fe2O3 was enhanced (34-43%) by temperatures (873-1073 K). Interestingly, the decrease sulfurization degree of ZnO/R-CuO was observed at 1073 K. After sulfurization, bond distance of Cu-Cu was decreased by 0.11 Å. Zn-Zn possessed an increase bond distance by 0.06 Ǻ.
The removals efficiency of particulates for ceramic filter was over 95%. The impregnation of ZnO and CuO on ceramic filter was little effected filtration efficiency. Degrees of sulfurization for ZnO or CuO on ceramic were (55-63%) which might be applicable in engineering. By XANES fitting, the main species of regenerated ZnO or CuO on ceramic filter were ZnO (94 %) and CuO (92%). Bond distance of Cu-Cu was decreased by 0.02 Å after sulfurization. In sulfurization ZnO/CF, bond distance of Zn-Zn was 3.31 Å with increasing bond distance by 0.1 Å.
Design of simultaneous desulfurization and removals of particulates is based on experiment data. With 2000 m3/h, the filter area of 120 m2 and 11 kg absorbents (ZnO) are needed for removals of particulates and desulfurization. Two series reactors provide 99% removal efficiency of H2S and particulates at 873 K.

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