1
|
Hydrodesulfurization of 4,6-Dimethyldibenzothiophene and the Diesel Oil Fraction on NiMo Catalysts Supported over Proton-Exchanged AlMCM-41 and TiMCM-41 Extrudates. Catalysts 2021. [DOI: 10.3390/catal11091086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
NiMo catalysts supported on mesoporous MCM-41 type materials shaped with binder were tested for activity in the hydrodesulfurization of 4,6-dimethyldibenzothiophene (4,6-DMDBT) and the diesel fuel fraction (0.92 wt% of sulfur). The aim of the investigation was to evaluate the effect of ion exchange with protons of Al- or Ti-substituted MCM-41 mesoporous supports. The subjected catalytic systems were NiMo/HAlMCM-41 and NiMo/HTiMCM-41, and for comparison purposes NiMo/AlMCM-41 and NiMo/TiMCM-41. The samples were characterized by N2 sorption (at 77 K), XRD, TEM, XPS, SEM and Py–IR. It was found that the functionalization of AlMCM-41 and TiMCM-41 with protons increased the conversion of 4,6-DMDBT and the pseudo-first-order rate constant. Correspondingly, 4,6-DMDBT HDS reactions over the NiMo/HTiMCM-41 catalyst proceeded to a similar extent via hydrogenation and direct desulfurization, whereas over the NiMo/HAlMCM-41 they proceeded mainly via direct desulfurization. Furthermore, the ion-exchanged catalysts displayed two-fold higher efficiency in direct desulfurization than their non-modified counterparts. The NiMo/HTiMCM-41 catalyst exhibited the highest catalytic efficiency in the HDS of 4,6-DMDBT and the diesel oil fraction. The high activity of the NiMo/HTiMCM-41 catalyst is mainly attributed to its appropriate acidity, as well as the metal–support interaction providing both the high dispersion of the active phase and the desirable multilayered stacking morphology of the active phase slabs.
Collapse
|
2
|
Synergy effect of boron and cobalt in B2O3-SBA-15-(Co)Mo catalyst for efficient hydrodesulfurization of liquid fuels. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04475-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
Titanium-modified MCM-41 molecular sieves as efficient supports to increase the hydrogenation abilities of NiMoS and CoMoS catalysts. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
4
|
Weng X, Cao L, Zhang G, Chen F, Zhao L, Zhang Y, Gao J, Xu C. Ultradeep Hydrodesulfurization of Diesel: Mechanisms, Catalyst Design Strategies, and Challenges. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04049] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoyi Weng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Liyuan Cao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Guohao Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Feng Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Liang Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Yuhao Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Jinsen Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 18 Fuxue Road, Beijing 102249, People’s Republic of China
| |
Collapse
|
5
|
Tanimu A, Ganiyu SA, Jillani SMS, Umar M, Adamu S, Alhooshani K. Sono-Assisted Synthesis and Kinetic Modeling of Nanocrystallite Silicalite-1-NiMo Catalysts for Hydrodesulfurization of Dibenzothiophene: Role of Sonication Time on Support Mesoporosity and Catalytic Activity. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03358] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Supported Mn catalysts and the role of different supports in the catalytic oxidation of carbon monoxide. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.12.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Tanimu A, Jillani SMS, Alluhaidan AA, Ganiyu SA, Alhooshani K. 4-phenyl-1,2,3-triazole functionalized mesoporous silica SBA-15 as sorbent in an efficient stir bar-supported micro-solid-phase extraction strategy for highly to moderately polar phenols. Talanta 2019; 194:377-384. [DOI: 10.1016/j.talanta.2018.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 09/29/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023]
|
8
|
Yuan P, Guo Y, Li X, Yue Y, Zhu H, Wang T, Bai Z, Bao X. Dependence of Morphology, Dispersion and Hydrodesulfurization Performance of Active Phases in NiMo/SBA-15 on Loading Method. ChemCatChem 2018. [DOI: 10.1002/cctc.201800671] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pei Yuan
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Yan Guo
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Xiaoling Li
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Yuanyuan Yue
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Haibo Zhu
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Tinghai Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Zhengshuai Bai
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Xiaojun Bao
- National Engineering Research Center of Chemical Fertilizer Catalyst School of Chemical Engineering; Fuzhou University; Fuzhou 350002 China
- State Key Laboratory of Photocatalysis on Energy and Environment; Fuzhou University; Fuzhou 350116 China
| |
Collapse
|
9
|
|