EPA-97-U1U4-04-001

097

4,000 千元

2008/06/05

2009/03/31

江康鈺

永續發展室(停用)

林燕柔

逢甲大學

大氣空氣

氣化,合成氣,碳轉化率,冷燃氣效率,焦炭

gasification, syngas, carbon conversion rate, cold gas efficiency, char

胡苔莉,林文彬

胡友馨

04-24517250#5216

shirley7087@gmail.com

本計畫利用固定床及流體化床氣化系統探討生質物及衍生燃料之產能效率，內容主要包括(1)建立生質物共同氣化之操作及技術特性；(2)提昇生質物共同氣化產物品質與能源轉化效率之評估；(3)建立氣化碳渣輕質化材料之可行性評估。研究利用熱重分析方法探討不同種類生質物之動力反應參數，結果顯示木屑之熱反應及燃盡特性較衍生燃料及稻殼為佳，且不同生質物摻配後之熱動力參數，易受不同生質物彼此摻混後而影響。其中生質物摻配後之燃盡特性，隨木屑之摻配比例增加而降低，此表示添加木屑將有助於改善生質物共同氣化之產氣效率。 生質物氣化產能效率結果顯示，氣化反應溫度為改善氣化產氣及品質之重要因素，一般而言，氣化溫度愈高將提供較有利於熱裂解反應之條件，進而提昇產氣效率及品質。此外，在流體化床操作溫度600℃之產氣熱值分析結果顯示，其產氣熱值遠高於固定床氣化系統。研究同時評估含矽黏土及氧化鈣作為催化劑，對氣化產氣效率之影響，根據氣化產氣量、產氣熱值、碳轉化率及冷燃氣效率之結果顯示，催化氣化反應有較佳之反應特性。 氣化碳渣與淨水污泥共同燒結製成綠色建築材料之可行性評估結果顯示，燒結產品在溫度1080℃及氣化碳渣掺配10%~40%條件下，均符合現行之建築材料應用規範，具有資源再利用之發展潛力。

氣化,合成氣,碳轉化率,冷燃氣效率,焦炭

中英文摘要簡要版.pdf

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中英文摘要簡要版

2010/7/1 上午 12:00:00

This study investigated biomass and the derived fuel gasification to produce syngas and clean energy using a fixed bed and fluidized bed reactor, respectively. The major objectives of this research were to (1) establish the technical characteristics and optimum operating conditions for biomass and waste-derived-fuel co-gasification; (2) enhance the syngas quality and energy conversion efficiency in biomass and waste-derived-fuel co-gasification; (3) assess the characteristics of lightweight bricks manufactured from char and water treatment plant sludge. The experiments using different biomass blends in the thermo-gravimetric test were investigated. According to the kinetic parameter analysis results, the sawdust thermo-reaction and burnout were better than those of rice husks and paper rejects derived fuel (P-RDF). The thermo-characteristics would change as one biomass was blended with another. That is, under these gasification conditions, those blends reacted at controlled interaction conditions. The biomass blending burnout characteristics decreased when the sawdust blending ratio was increased. This indicates that added sawdust could improve the gas yield in co-gasification. The gas yield and energy production efficiency in sawdust and P-RDF gasification were discussed. The gasification temperature is a critical factor for improving the gas yield and quality. In general, a higher temperature provides more favorable conditions for thermal cracking and enhanced the gas yield and quality. In the case of the fluidized bed reactor temperature operated at 600℃, the lower heating value of syngas were higher than that of syngas produced from a fixed bed reactor. A clay containing silica and calcium oxide (CaO) were used as the gasification catalyst in this research. The catalyst effect on the gas yield and energy production efficiency was evaluated in fixed bed and fluidized bed gasification. According to the gas yield results, the catalytic gasification has good gas yield performances, lower heating value, carbon conversion rate and cold gas efficiency. The feasibility of eco-building materials manufactured from char and water treatment plant sludge using sintering was also discussed. The experiments were conducted at a temperature of 1080℃ with char content addition varying from 10% to 40%. All sintered specimens made from char and water treatment plant sludge were in compliance with current Taiwan building bricks criteria. These results confirm the feasibility of using char and water treatment plant sludge to produce sintered construction brick.

gasification, syngas, carbon conversion rate, cold gas efficiency, char