孔结构对石油树脂加氢用 Mo-Ni 催化剂性能的影响

IF 2.3 4区 化学 Q3 CHEMISTRY, PHYSICAL Catalysis Letters Pub Date : 2024-07-04 DOI:10.1007/s10562-024-04768-x
Tong Niu, Zhengyang Shi, Jinchang Sun, Qianwen Zhang
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摘要

催化加氢改性石油树脂(PR)是利用热解石油副产品生产高附加值加氢石油树脂(HPR)的升级技术。本研究采用不同孔径分布的氧化铝载体制备了支撑型 Mo-Ni 催化剂,并考察了它们在 C9 石油树脂上的催化加氢性能。采用双峰孔氧化铝(BPA)载体制备的催化剂有效地克服了内部扩散的限制,增加了活性位点的数量,从而提高了催化加氢的活性。实验结果表明,MoNi/BPA 对 HC9PR 的氢化率达到 99.94%,氢化产物的铂-钴色度为 2.37 Hazen。反应 140 小时后,HC9PR 的氢化率仍为 96.51%,铂-钴色度值低于 40 Hazen。这项研究证实,解决石油树脂分子在支撑催化剂孔隙中的传质问题是设计高效石油树脂加氢催化剂的关键。
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Effect of Pore Structure on the Performance of Mo-Ni Catalysts for Petroleum Resin Hydrogenation

The modification of petroleum resin (PR) by catalytic hydrogenation is an upgrading technology for producing high-value-added hydrogenated petroleum resin (HPR) from of pyrolysis petroleum by-product. This research employed alumina supports with different pore size distributions to prepare supported Mo-Ni type catalysts and investigated their catalytic hydrogenation performance on C9 petroleum resin. Catalysts prepared with bimodal pore alumina (BPA) supports effectively overcome the limitations of internal diffusion and increase the quantity of active sites, thus increasing the catalytic activity for hydrogenation. The experimental results demonstrated that MoNi/BPA achieved a hydrogenation degree of 99.94% for HC9PR, with the hydrogenated product having a Pt–Co colour of 2.37 Hazen. After 140 h of reaction, the hydrogenation degree of HC9PR remained at 96.51%, and the Pt–Co colour value was lower than 40 Hazen. This investigation confirms that solving the mass transfer issues of petroleum resin molecules in the pores of supported catalysts is key to designing efficient hydrogenation catalysts for petroleum resin.

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来源期刊
Catalysis Letters
Catalysis Letters 化学-物理化学
CiteScore
5.70
自引率
3.60%
发文量
327
审稿时长
1 months
期刊介绍: Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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