Effect of reaction conditions on the hydrogenation of naphthalene to decalin over Ni/Al<sub>2</sub>O<sub>3</sub> catalyst

MI Xing; HE Guang-xiang; GUO Xiao-yan; YANG Suo-he; LUO Guo-hua; XU Xin; JIN Hai-bo

Volume 46 Issue 7

Jul. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(7): 879-885

MI Xing, HE Guang-xiang, GUO Xiao-yan, YANG Suo-he, LUO Guo-hua, XU Xin, JIN Hai-bo. Effect of reaction conditions on the hydrogenation of naphthalene to decalin over Ni/Al2O3 catalyst[J]. Journal of Fuel Chemistry and Technology, 2018, 46(7): 879-885.

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MI Xing, HE Guang-xiang, GUO Xiao-yan, YANG Suo-he, LUO Guo-hua, XU Xin, JIN Hai-bo. Effect of reaction conditions on the hydrogenation of naphthalene to decalin over Ni/Al₂O₃ catalyst[J]. Journal of Fuel Chemistry and Technology, 2018, 46(7): 879-885.

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Effect of reaction conditions on the hydrogenation of naphthalene to decalin over Ni/Al₂O₃ catalyst

Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

Funds:

the National Natural Science Foundation of China 91634101

Construction of Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing Municipality IDHT20180508

More Information

Corresponding author: JIN Hai-bo, E-mail:jinhaobo@bipt.edu.cn
Received Date: 2017-11-27
Rev Recd Date: 2018-05-03

Available Online: 2021-01-23

Publish Date: 2018-07-10

Abstract

Abstract

The effect of reaction conditions, including temperature, pressure, space velocity and hydrogen to oil ratio, on the hydrogenation of naphthalene to decalin over Ni/Al₂O₃ catalyst was investigated in a high pressure fixed bed reactor. The results indicate that the conversion of naphthalene and the selectivity to tran-decalin and cis-decalin are closely related to the reaction conditions. The ratio of tran-decalin to cis-decalin increases with an increase in the hydrogen to oil ratio and reaction temperature, but decreases with an increase in the liquid hourly space velocity (LHSV) and reaction pressure. Under a temperature 260-290℃, 5-7 MPa, a LHSV 1-1.5 h^-1, and a hydrogen to oil ratio higher than 250, the conversion of naphthalene is 100% and the selectivity to decalin is close to 100%, with a tran-decalin to cis-decalin ratio of about 4.0. Meanwhile, it was found that the sintering and/or loss of active component are the main factors that cause the deactivation of Ni/Al₂O₃ catalyst in naphthalene hydrogenation and influence the ratio of tran-decalin to cis-decalin in the products.
- reaction conditions,
- naphthalene hydrogenation,
- Ni/Al₂O₃,
- decalin

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References(31)

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