四川大学学报(自然科学版)
四川大學學報(自然科學版)
사천대학학보(자연과학판)
JOURNAL OF SICHUAN UNIVERSITY(NATURAL SCIENCE EDITION)
2013年
6期
1320-1326
,共7页
甲醇%二氧化碳%催化剂%真空冷冻干燥法%超声波法
甲醇%二氧化碳%催化劑%真空冷凍榦燥法%超聲波法
갑순%이양화탄%최화제%진공냉동간조법%초성파법
methanol%carbon dioxide%catalyst%vacuum freeze drying%ultrasonic vibration
采用共沉淀法、真空冷冻干燥法、超声波法、水热法等方法制备了一系列CuO-ZnO-ZrO2甲醇合成催化剂,在微型固定床反应器上考察了其对CO2加氢合成甲醇的催化性能及影响,并用XRD、H2-TPR、CO2-TPD、TEM、EDAX、BET等手段进行了表征.研究结果表明,采用真空冷冻干燥法和超声波法能够制备出高比表面积、高活性、高选择性的甲醇合成催化剂CuO-ZnO-ZrO2.
採用共沉澱法、真空冷凍榦燥法、超聲波法、水熱法等方法製備瞭一繫列CuO-ZnO-ZrO2甲醇閤成催化劑,在微型固定床反應器上攷察瞭其對CO2加氫閤成甲醇的催化性能及影響,併用XRD、H2-TPR、CO2-TPD、TEM、EDAX、BET等手段進行瞭錶徵.研究結果錶明,採用真空冷凍榦燥法和超聲波法能夠製備齣高比錶麵積、高活性、高選擇性的甲醇閤成催化劑CuO-ZnO-ZrO2.
채용공침정법、진공냉동간조법、초성파법、수열법등방법제비료일계렬CuO-ZnO-ZrO2갑순합성최화제,재미형고정상반응기상고찰료기대CO2가경합성갑순적최화성능급영향,병용XRD、H2-TPR、CO2-TPD、TEM、EDAX、BET등수단진행료표정.연구결과표명,채용진공냉동간조법화초성파법능구제비출고비표면적、고활성、고선택성적갑순합성최화제CuO-ZnO-ZrO2.
A series of catalysts for methanol synthesis were perpared by different methods .Catalytic properties of catalysts were systemically investigated ,using the technologies of XRD ,H2-TPR ,CO2-TPD ,TEM ,EDAX ,BET and the evaluation of catalytic activity was conducted in a micro fixed-bed re-actor .The results show that the catalysts for methanol synthesis perpared by vacuum freeze drying and ultrasonic vibration have high specific surface area ,high activity and high selectivity .