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Experimental Research of Two-step Hydrogenation of Industrial Naphthalene to Decalin
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Dakui ZHANG1, Liwei ZHANG1, Jiqing ZHANG2, Zhiqiang XU1, Hongcai YU1, Chuang LI3, Changhai LIANG3
Angang Technology | 2026, (3) : 38 - 46
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Angang Technology | 2026, (3): 38-46
• Research and Development •
Experimental Research of Two-step Hydrogenation of Industrial Naphthalene to Decalin
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Dakui ZHANG1, Liwei ZHANG1, Jiqing ZHANG2, Zhiqiang XU1, Hongcai YU1, Chuang LI3, Changhai LIANG3
Affiliations
  • 1.Angang Chemical Technology Co., Ltd., Anshan 114021, Liaoning, China
  • 2.Department of Manufacture Management of Angang Steel Co., Ltd., Anshan 114021, Liaoning, China
  • 3.Dalian University of Technology, Dalian 116024, Liaoning, China
doi: 10.3969/j.issn.1006-4613.2026.03.007
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Industrial naphthalene contains thionaphthene, quinoline, and their derivatives, which can cause catalyst poisoning during the hydrogenation process, significantly reducing catalyst lifespan. A two-step hydrogenation technology involving fixed-bed hydrofining and deep hydrogenation of industrial naphthalene was designed to produce decalin. The hydrofining process mainly removed sulfur and nitrogen impurities from industrial naphthalene. Using NiMo sulfide catalysts for hydrofining, sulfur content was reduced from 3 200ppm to below 34ppm, and nitrogen content from 102ppm to below 38ppm. Taking the hydrofining product as the raw material for deep hydrogenation, a Pt-Pd/SiO2-Al2O3 catalyst was used in deep hydrogenation process and then both naphthalene and tetraline were completely converted to decalin, with the trans-decalin content in the product stabilized at approximately 87.2% and a maximum trans-/cis- of 6.8. Both catalysts exhibited excellent stability over a 1 000-hour test, showing no signs of deactivation.

industrial naphthalene  /  hydrofining  /  deep hydrogenation  /  decalin  /  cis-trans structure
张大奎, 张立伟, 张继庆, 徐志强, 于洪才, 李闯, 梁长海. 工业萘两步加氢制十氢萘的实验研究. 鞍钢技术, 2026 , (3) : 38 -46 . DOI: 10.3969/j.issn.1006-4613.2026.03.007
Dakui ZHANG, Liwei ZHANG, Jiqing ZHANG, Zhiqiang XU, Hongcai YU, Chuang LI, Changhai LIANG. Experimental Research of Two-step Hydrogenation of Industrial Naphthalene to Decalin[J]. Angang Technology, 2026 , (3) : 38 -46 . DOI: 10.3969/j.issn.1006-4613.2026.03.007
Appendix
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Year 2026 volume Issue 3
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doi: 10.3969/j.issn.1006-4613.2026.03.007
  • Online Date：2026-09-20
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  • Revised：2025-05-10
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Affiliations
    1.Angang Chemical Technology Co., Ltd., Anshan 114021, Liaoning, China
    2.Department of Manufacture Management of Angang Steel Co., Ltd., Anshan 114021, Liaoning, China
    3.Dalian University of Technology, Dalian 116024, Liaoning, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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