Preparation of a magnetically supported MoS2 catalyst and its heavy oil viscosity-reducing performance

doi:10.16085/j.issn.1000-6613.2019-2117

Chemical Industry and Engineering Progress ›› 2020, Vol. 39 ›› Issue (S1): 170-174.DOI: 10.16085/j.issn.1000-6613.2019-2117

• Industrial catalysis • Previous Articles Next Articles

Preparation of a magnetically supported MoS₂ catalyst and its heavy oil viscosity-reducing performance

Xiangyang ZHU¹^,²(), Dong QIAO³, Qinling BI⁴, Huifang XING¹^,², Shan NI¹^,², Liangrong YANG¹^,²(), Huizhou LIU¹^,²()

^1.CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
^2.University of Chinese Academy of Sciences, Beijing 100049, China
^3.China University of Petroleum, Beijing 102249, China
^4.PetroChina Company Limited Petrochemical Research Institute, Beijing 102206, China

Received:2019-12-28 Online:2020-06-29 Published:2020-05-20
Contact: Liangrong YANG,Huizhou LIU

磁载体MoS₂催化剂制备及其重油减黏

朱向阳¹^,²(), 乔栋³, 毕秦岭⁴, 邢慧芳¹^,², 倪善¹^,², 杨良嵘¹^,²(), 刘会洲¹^,²()

^1.中国科学院绿色过程与工程重点实验室(中国科学院过程工程研究所)，北京 100190
^2.中国科学院大学，北京 100049
^3.中国石油大学，北京 102249
^4.中国石油天然气股份有限公司石油化工研究院, 北京 102206

通讯作者: 杨良嵘,刘会洲
作者简介:朱向阳（1994—），男，博士研究生，研究方向为磁性纳米催化剂。E-mail：xiangyzhu@163.com。
基金资助:
国家自然科学基金(21922814);中科院青年创新促进会(Grant 2016043);北京市自然科学基金(2194086);中石油合作项目(PRIKY17094)

Abstract

Abstract:

Here the superparamagnetic MoS₂/SiO₂/Fe₃O₄ catalyst were prepared by hydrothermal method with SiO₂/Fe₃O₄ as carrier and MoS₂ as active constitutes. The as-synthesized samples were characterized by XRD, VSM, BET and FTIR. The results show that the catalyst has effectively loading the active component and has excellent magnetic properties, the coating layer of SiO₂ can not only protect the magnetic core, but also significantly increase BET specific surface area. The viscosity-reducing performance of the catalyst was systematically investigated with atmospheric residue. It was found that the prepared catalyst can effectively reduce the viscosity of residual, which is better than commercial MoS₂ and Mo(CO)₆. Increasing reaction temperature can also achieve better visbreaking effect. Besides, the catalyst can be separated under the external magnetic field after the reaction. These results provide new insights into the development of recyclable catalyst that integrate the magnetic and active component in the treatment of heavy oil.

Key words: magnetic, catalyst, molybdenum disulfide, petroleum, viscosity, nanoparticles

摘要：

以SiO₂/Fe₃O₄为载体，MoS₂为活性组分，通过水热法制备出超顺磁性MoS₂/SiO₂/Fe₃O₄催化剂，并对催化剂进行XRD、VSM、BET、FTIR等表征。结果表明：催化剂有效担载活性组分并且具有优异的磁学性能，SiO₂包覆不仅能保护磁核，而且显著增大催化剂的比表面积。以常压渣油为原料，系统考察了催化剂的减黏性能。发现所制备的磁载体催化剂减黏效果高于商业二硫化钼及羰基钼，提升反应温度能达到更好的减黏效果。此外，在外加磁铁的作用下，催化剂可以方便回收以达到再利用的效果。将具有优异磁学性能的纳米粒子与具有催化性能的活性组分相结合制备的磁性纳米催化剂，为开发重油改质催化剂提供了新的思路。

关键词: 磁性, 催化剂, 二硫化钼（MoS₂）, 石油, 黏度, 纳米粒子

CLC Number:

S216.4

Xiangyang ZHU, Dong QIAO, Qinling BI, Huifang XING, Shan NI, Liangrong YANG, Huizhou LIU. Preparation of a magnetically supported MoS₂ catalyst and its heavy oil viscosity-reducing performance[J]. Chemical Industry and Engineering Progress, 2020, 39(S1): 170-174.

朱向阳, 乔栋, 毕秦岭, 邢慧芳, 倪善, 杨良嵘, 刘会洲. 磁载体MoS₂催化剂制备及其重油减黏[J]. 化工进展, 2020, 39(S1): 170-174.

Figures/Tables 4

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对比	黏度/mPa·s
对比	25℃	50℃	100℃
对比实验
重油(350℃)	112×10⁴	5120	550
热裂化(410℃)	1080	310	63
供氢裂化(410℃)	1150	260	55
临氢裂化^①(410℃)	915	218	53
临氢裂化^②(410℃)	1080	243	55
Fe₃O₄@SiO₂@MoS₂
临氢裂化(400℃)	1580	340	60
临氢裂化(410℃)	465	190	40
临氢裂化(420℃)	325	120	30

对比	黏度/mPa·s
对比	25℃	50℃	100℃
对比实验
重油(350℃)	112×10⁴	5120	550
热裂化(410℃)	1080	310	63
供氢裂化(410℃)	1150	260	55
临氢裂化^①(410℃)	915	218	53
临氢裂化^②(410℃)	1080	243	55
Fe₃O₄@SiO₂@MoS₂
临氢裂化(400℃)	1580	340	60
临氢裂化(410℃)	465	190	40
临氢裂化(420℃)	325	120	30

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