發(fā)布時間：2018-04-20 22:23

  本文選題：納米氧化鋅 + 原位制備��； 參考：《天然氣化工(C1化學與化工)》2017年04期

【摘要】：為解決高溫煤氣脫硫劑在使用過程中的粉化問題,設計了一種獨特的脫硫劑原位制備方法。首先采用固相法合成納米硫化鋅前驅體,再通過對前驅體進行原位再生從而得到再生型納米氧化鋅脫硫劑�？疾炝饲膀岓w再生過程中再生溫度、氧氣體積分數和再生空速對脫硫劑再生性能的影響,并使用XRD、TEM和BET等儀器對前驅體和再生型脫硫劑進行了表征。獲得了最佳的前驅體再生條件:再生溫度650℃、氧氣體積分數6%和再生空速4000h~(-1)。對制備的脫硫劑進行了四次硫化再生循環(huán)測試。結果顯示,該脫硫劑經過四次硫化再生后仍保持較高的機械強度,維持在140N/cm左右,沒有出現粉化和漲裂等問題,且硫化性能在多次硫化后也保持穩(wěn)定。
[Abstract]:In order to solve the problem of pulverization of high temperature gas desulfurizer, a unique in situ preparation method of desulfurizer was designed. Nano-zinc sulfide precursor was synthesized by solid state method, and then regenerated nano-zinc oxide desulfurizer was obtained by in-situ regeneration of the precursor. The effects of regeneration temperature, oxygen volume fraction and regenerated space velocity on the regeneration performance of the desulfurizer were investigated. The precursor and regenerated desulfurizer were characterized by XRD-TEM and BET. The optimum conditions of precursor regeneration were obtained as follows: regeneration temperature 650 鈩，

本文編號：1779720