化学工程与装备
化學工程與裝備
화학공정여장비
CHEMICAL ENGINEERING & EQUIPMENT
2011年
10期
45-49
,共5页
无烟煤气化%表观动力学%水蒸气%流化床
無煙煤氣化%錶觀動力學%水蒸氣%流化床
무연매기화%표관동역학%수증기%류화상
catalytic coal gasification%kinetics%steam%fluidized bed
基于对福建尤溪无烟煤燃烧特性分析,在内径为26mm的实验室小型流化床反应器中进行福建尤溪无烟粉煤与NaOH浸渍混合后的水蒸气催化气化实验。考察了4g/min水蒸汽流量下,不同催化剂加载浓度及不同温度对碳转化率的影响,并对催化气化表观动力学参数进行拟合与计算。研究结果表明：气化温度的升高和催化剂加载浓度的增大能显著提高碳转化率和产气速率,催化剂加载浓度从0%到8%的增加明显降低了催化气化反应的活化能,而从8%到10%的增加又令活化能有增加的趋势。在本实验条件下,NaOH作为催化剂的饱和加载浓度为8%。
基于對福建尤溪無煙煤燃燒特性分析,在內徑為26mm的實驗室小型流化床反應器中進行福建尤溪無煙粉煤與NaOH浸漬混閤後的水蒸氣催化氣化實驗。攷察瞭4g/min水蒸汽流量下,不同催化劑加載濃度及不同溫度對碳轉化率的影響,併對催化氣化錶觀動力學參數進行擬閤與計算。研究結果錶明：氣化溫度的升高和催化劑加載濃度的增大能顯著提高碳轉化率和產氣速率,催化劑加載濃度從0%到8%的增加明顯降低瞭催化氣化反應的活化能,而從8%到10%的增加又令活化能有增加的趨勢。在本實驗條件下,NaOH作為催化劑的飽和加載濃度為8%。
기우대복건우계무연매연소특성분석,재내경위26mm적실험실소형류화상반응기중진행복건우계무연분매여NaOH침지혼합후적수증기최화기화실험。고찰료4g/min수증기류량하,불동최화제가재농도급불동온도대탄전화솔적영향,병대최화기화표관동역학삼수진행의합여계산。연구결과표명：기화온도적승고화최화제가재농도적증대능현저제고탄전화솔화산기속솔,최화제가재농도종0%도8%적증가명현강저료최화기화반응적활화능,이종8%도10%적증가우령활화능유증가적추세。재본실험조건하,NaOH작위최화제적포화가재농도위8%。
Be based on analyzing in the combustibility of Fujian anthracite,The experiments on the catalytic steam gasification of Fujian Youxi anthracite and NaOH were carried out in a bench-scale fluidized bed reactor of 26mm diameter.The effects of catalyst concentration and temperatures on the carbon conversion were evaluated under 4g/min steam rate,and the kinetic parameters were calculated.The results show that the increasing of gasification temperatures and catalyst concentrations can greatly improve the carbon conversions and gasification rates,and the activation energy may decrease with the increasing of catalyst concentrations up to 8% but increase while the catalyst concentration is from 8% to 10%.The catalyst loading saturation was found to be 8% by weight.
