摘要
采用ＴＰＤ、ＸＲＤ、ＢＥＴ和Ｈ２Ｓ中毒试验等方法，对比研究三组份（Ｃｕ－Ｚｎ－Ａｌ）甲醇合成催化剂Ｃ２０７和添加少量金属氧化物的改进型催化剂ＮＣ２０８．结果表明，工作态ＮＣ２０８催化剂表面Ｃｕ＋／Ｃｕ０的比值和价态稳定性大于Ｃ２０７．
By means of TPD、 XRD、 BET and H 2S resistence test a comparative study of the copper based catalyst C207 and its modified one (with addition of some metal oxide) NC208 for methanol sunthesis from syngas has been carried out. The results showed that NC208 had an obviously better thermostability and H 2S resistance, its optimum working temperature was 240℃, about 10℃ lower than C207s. NC208 had higher Cu +/Cu 0 ratio and valency stability. Under the reaction conditions of 5 0 MPa and 210￣230℃ the catalytic activity of NC208 was 30% higher than that of C207. Under 10 0 MPa and 2 5%￣4 5% CO content in syngas, after heat treatment at 450℃ for 5 h, the conversion of CO was about 7% higher than that on using NC208.
出处
《应用化学》
CAS
CSCD
北大核心
1997年第3期62-65,共4页
Chinese Journal of Applied Chemistry
