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摘要
以骨架镍为催化剂,研究了α-蒎烯固定床连续加氢制顺式蒎烷工艺。考察了H2压力、反应温度、物料空速及H2用量等条件对反应的影响,优化了工艺条件。结果表明,在H2压力为2 MPa、反应温度为120℃、液时空速为0.75 h-1、氢气与α-蒎烯摩尔比为20时,α-蒎烯的转化率达99.3%,顺式蒎烷的选择性为92.6%。连续运行结果表明该工艺具有较好的稳定性。
Abstract
Continuous hydrogenation of α-pinene in fixed-bed reactor to make cis-pinane are studied by using skeleton Ni catalyst.The effects of H2 pressure, reaction temperature, space velocity of α-pinene and H2 dosage on the hydrogenation are investigated.The optimized conditions for hydrogenation are as follows:H2 pressure is 2 MPa, reaction temperature is at 120℃, LHSV of α-pinene is 0.75 h-1 and the ratio of H2 to α-pinene is 20.Under the optimal conditions, the conversion rate of α-pinene can reach 99.3% and the selectivity of cis-pinane can reach 92.6%.In addition, the result of continuous hydrogenation shows that this process is very stable.
关键词
α-蒎烯
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顺式蒎烷
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加氢
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骨架镍催化剂
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固定床
Key words
α-pinene
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cis-pinane
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hydrogenation
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skeleton Ni catalyst
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fixed-bed reactor
Author summay
陈川(1982-),女,硕士研究生,研究方向为非均相催化,8000000705@czie.edu.cn。
α-蒎烯固定床加氢制顺式蒎烷[J].
现代化工, 2018, 38(9): 110-112,114 DOI:10.16606/j.cnki.issn0253-4320.2018.09.025