摘要
采用超临界干燥法制备ＺｒＯ２超细催化剂，用于合成气高选择性合成甲醇、异丁醇。考察了碱金属助剂、焙烧温度、焙烧时间、助剂Ｋ２Ｏ含量、成型压力及反应温度等对合成甲醇、异丁醇的影响。结果是浸渍２％Ｋ２Ｏ、经６００℃焙烧４ｈ后得到的催化剂可高选择性合成甲醇、异丁醇，在４２０℃、１０ＭＰａ、５０００ｈ－１条件下生成异丁醇的组成为１６．３１％（ｍａｓｓ），时空产率为８．９０ｍｌ／（ｈ·Ｌ）。
An ultrafine ZrO 2 catalyst for synthesis of methanol and isobutanol from syngas was prepared by a supercritical fluid drying(SCFD) method. An investigation was carried out on the effects of basic promoters, calcination temperature and time, K 2O content, pelleting compression, and reaction temperature on synthesis of the alcohols. The results show that the highest catalytic activity and high selectivity to methanol and isobutanol were obtained when 2% (mass) K 2O was impregnated on the ZrO 2 aerogel powder, and then compressed at 400 kg/m 2 before calcinated at 600℃ for 4 hours. Under the conditions of 400℃, 10 MPa, and 5000h -1 , the mass percentage and space time yield of isobutanol could reach 16.33%(mass) and 8.90 ml/(h·L), respectively.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
1997年第6期26-30,共5页
Natural Gas Chemical Industry
基金
国家重大自然科学基金
