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蒸汽活化提高脫硫劑鈣利用率的實(shí)驗(yàn)研究
摘要： 本文用小型熱態(tài)流化床實(shí)驗(yàn)臺(tái)對(duì)以CaO為主要成分的鈣基脫硫劑石灰乏吸收劑在150 600的溫度范圍內(nèi)進(jìn)行了蒸汽活化處理，進(jìn)而實(shí)驗(yàn)研究了這種處理對(duì)提高脫硫劑鈣利用率的效果。結(jié)合化學(xué)成分分析和X射線衍射的結(jié)果初步探討了蒸汽活化的機(jī)理。研究表明，脫硫劑對(duì)水蒸汽的物理吸附明顯受活化溫度的影響，蒸汽活化后的鈣利用率提高顯著，可能存在一個(gè)最佳活化時(shí)間 Abstract： The Calcium-based (Ca-based) spent absorbent was reactivated by steam at thetemperature of 150 600 using the laboratory-scale fluidized bed.The effect of steam reactivation on the conversion was studied according tothe weight gain after steam absorption and the second sulphation process. Themechanism of steam reactivation was discussed according to the results ofcomposite analysis and the data of XRD (X-ray diffraction). It was found thatunder the conditions of this experiment, absorbent weight change during thesecond sulphation process is the comprehensive process of dehydration andsulphation; steam reactivation can increase the conversion of absorbent andthe capacity to capture SO2; at lower temperatures, the enhanced CaOutilization is ascribed to the formation of Ca(OH)2 after reactivation;the steam temperature had effect on the absorbent's physical adsorption ofsteam which is the reason of conversion increase at higher temperatures;there was probably an optimum reactivation time corresponding to a maximumconversion 作 者： 王愛(ài)軍 祁海鷹 由長(zhǎng)福 呂屏 徐旭常 WANG Aijun QI Haiying YOU Changfu LU Ping XU Xuchang 作者單位： 清華大學(xué)煤的清潔燃燒技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室,北京 100084 期 刊： 工程熱物理學(xué)報(bào) ISTICEIPKU Journal： JOURNAL OF ENGINEETING THERMOPHYSICS 年，卷(期)： 2000, 21(6) 分類號(hào)： X77 關(guān)鍵詞： 蒸汽活化 脫硫劑的鈣利用率 Keywords： steam reactivation calcium conversion rateof absorbent【蒸汽活化提高脫硫劑鈣利用率的實(shí)驗(yàn)研究】相關(guān)文章：
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