HPMo/SBA-15催化β-蒎烯二聚反应制备高密度燃料

doi:10.3969/j.issn.1673-5854.2021.01.011

生物质化学工程 ›› 2021, Vol. 55 ›› Issue (1): 77-82.doi: 10.3969/j.issn.1673-5854.2021.01.011

HPMo/SBA-15催化β-蒎烯二聚反应制备高密度燃料

向凤红¹^,²(), 朱平³, 杨晓琴¹^,², 侯英¹^,², 刘祥义¹^,², 徐娟¹^,²^,*()

1. 西南林业大学西南地区林业生物质资源高效利用国家林业与草原局重点实验室, 云南昆明 650224
2. 西南林业大学化学工程学院, 云南昆明 650224
3. 云南省特种设备安全监测研究院, 云南昆明 650228

收稿日期:2019-11-06 出版日期:2021-01-30 发布日期:2021-01-25
通讯作者: 徐娟 E-mail:1768632087@qq.com;58045846@qq.com
作者简介:徐娟, 女, 高级实验师, 硕士生导师, 主要从事生物质资源转化与利用的教学与研究工作; E-mail:58045846@qq.com
向凤红(1999-), 男, 重庆人, 本科生, 主要从事高密度燃料研究工作; E-mail:1768632087@qq.com
基金资助:
云南省科技厅科技计划农业联合面上项目(2018FG001-052)

Preparation of High Density Fuel Through Dimerization of β-Pinene Catalyzed by HPMo/SBA-15

Fenghong XIANG¹^,²(), Ping ZHU³, Xiaoqin YANG¹^,², Ying HOU¹^,², Xiangyi LIU¹^,², Juan XU¹^,²^,*()

1. Key Laboratory of National Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China(Southwest Forestry University), Kunming 650224, China
2. College of Chemical Engineering, Southwest Forestry University, Kunming 650224, China
3. Yunnan Province Special Equipment Safety Inspection and Research Institute, Kunming 650228, China

Received:2019-11-06 Online:2021-01-30 Published:2021-01-25
Contact: Juan XU E-mail:1768632087@qq.com;58045846@qq.com

摘要/Abstract

摘要：

使用原硅酸四乙基酯、三嵌段共聚物P123制备了SBA-15，并采用浸制法将磷钼酸（HPMo）负载于SBA-15上制得催化剂HPMo/SBA-15。以HPMo/SBA-15催化β-蒎烯进行二聚反应，然后将二聚产物经Pd/C催化加氢反应制得高密度燃料。采用FT-IR，XRD和N₂吸附-脱附等温线对HPMo/SBA-15的结构进行表征，探讨了不同负载量的HPMo/SBA-15催化剂对β-蒎烯二聚反应的催化性能。结果表明：制备的HPMo/SBA-15催化剂具有介孔特性，当HPMo负载量较低（≤ 80%）时，HPMo在SBA-15上分散均匀，当HPMo负载量较高达到100%时，HPMo分布不均匀，在分子筛表面团聚，堵塞孔道，导致HPMo/SBA-15比表面积降低。80% HPMo/SBA-15催化活性最高，150℃下其催化β-蒎烯二聚加氢反应4 h时二聚产物的得率达到63.3%；二聚产物加氢制备的高密度燃料的密度和热值与燃料JP-10相当，但因黏度过大，不能作为燃料单独使用，仅可作为添加剂与其他燃料复配使用。

关键词: HPMo/SBA-15, β-蒎烯, 介孔材料, 二聚反应, 高密度燃料

Abstract:

The catalyst HPMo/SBA-15 was prepared by loading the phosphomolybdic acid(HPMo) on the SBA-15, which was prepared by tetraethyl orthosilicate and triblock copolymer(P123).The dimerization of β-pinene was catalyzed by HPMo/SBA-15, and then the dimer product was hydrogenated by Pd/C catalysis to produce high density fuel. The structure of HPMo/SBA-15 was characterized by FT-IR, XRD and N₂ adsorption-desorption analysis. The catalytic performance of HPMo/SBA-15 catalysts with different loading amount for β-pinene dimerization was also studied. The results showed that the prepared HPMo/SBA-15 catalyst had mesoporous characteristics.HPMo dispersed evenly in the SBA-15 when the loading amount of HPMo ≤ 80%; when the loading amount was 100%, the HPMo was unevently distributed, aggregated on the surface of molecular sieves and blocked the hole, which resulted in the decrease of HPMo/SBA-15 surface area. The catalytic activity of 80% HPMo/SBA-15 was the highest, and the yield of dimer reached 63.3% after 4 h reaction at 150℃.The density and volume calorific value of high density fuel obtained from hydrogenated dimer product were similar to those of JP-10. However, the large viscosity, the high density fuel could not be used as fuel alone, could only be used as additives with other fuels.

Key words: HPMo/SBA-15, β-pinene, mesoporous material, dimer reaction, high density fuel

中图分类号:

TQ35

向凤红, 朱平, 杨晓琴, 侯英, 刘祥义, 徐娟. HPMo/SBA-15催化β-蒎烯二聚反应制备高密度燃料[J]. 生物质化学工程, 2021, 55(1): 77-82.

Fenghong XIANG, Ping ZHU, Xiaoqin YANG, Ying HOU, Xiangyi LIU, Juan XU. Preparation of High Density Fuel Through Dimerization of β-Pinene Catalyzed by HPMo/SBA-15[J]. Biomass Chemical Engineering, 2021, 55(1): 77-82.

图/表 6

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参考文献 19

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催化剂 catalyst	比表面积/(m²·g^-1) BET surface area	孔容/(cm³·g^-1) pore volume	孔径/nm pore size
SBA-15	738.2	1.12	6.18
40%HPMo/SBA-15	603.5	0.67	6.71
60%HPMo/SBA-15	553.3	0.65	6.76
80%HPMo/SBA-15	521.4	0.63	6.77
100%HPMo/SBA-15	309.7	0.52	7.01

催化剂 catalyst	转化率/% conversion	二聚体得率/% yield of dimers	多聚体得率/% yield of polymers	反应时间 time	反应温度/℃ temperature	参考文献 references
80%HPMo/SBA-15	96	20.6	2.5	4 h	125	本研究this research
Amberlyst-15	69.2	12.1	4.3	—	125	^[18]
MMT-K10	10	41.5	11.6	—	125	^[18]
Nafion SAC-13	94	1.4	0.3	—	125	^[18]

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HPMo/SBA-15催化β-蒎烯二聚反应制备高密度燃料

Preparation of High Density Fuel Through Dimerization of β-Pinene Catalyzed by HPMo/SBA-15

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