期刊论文

中文

现代化工

0253-4320

2015

35

10

66-70

10.16606/j.cnki.issn0253-4320.2015.10.016

湖南省教育厅科学研究项目（13C110）；

本校为第一机构

在氧化铝表面,以葡萄糖为炭源,通过高温热解方法制备了覆炭氧化铝载体(CCA),利用浸渍法制备Ni-Cu/CCA催化剂,并对催化剂进行了IR、BET、TG、SEM表征。利用微型连续管式反应器与气相色谱联用装置,考察了Ni -Cu/CCA催化剂对甲基环己烷(MCH)气相脱氢的催化性能。结果表明,载体覆炭质量分数为10%,金属活性组分Ni、Cu质量比为10: 1,反应温度为650 K,甲基环己烷微量进料为0.015 mL/min,载气流速为8 mL/min,反应压力为0.4 MPa时,使用0.6 g Ni-Cu/CCA,甲基环己烷脱氢转化率达到95.27%,甲苯的选择性接近100%。

The carbon-covered alumina (CCA) is prepared on alumina surface through high temperature pyrolysis by using glucose as carbon source. Ni-Cu/CCA catalyst is subsequently synthesized by impregnation method. The structure and surface morphology are characterized by IR, TG, BET and SEM. Dehydrogenation of methylcyclohexane (MCH) catalyzed by Ni-Cu/CCA is performed under a fixed-bed microreactor-gas chromatography system (MGCS). The results show that the conversion of MCH and selectivity of toluene can reach 95.27% and 100%, respectively, under the ...