Zobrazeno 1 - 10
of 1 234
pro vyhledávání: '"Transesterification reaction"'
Publikováno v:
Zhongguo youzhi, Vol 49, Iss 10, Pp 118-124 (2024)
为实现无甘油生物柴油的高效制备,以共沉淀法制备的镁铝水滑石为载体,K2CO3溶液为浸渍液,通过等体积浸渍法制备高分散负载型固体碱催化剂,考察水滑石制备过程中金属盐种类以及物
Externí odkaz:
https://doaj.org/article/a37ec59199984ef2bf5c109a769f526a
Publikováno v:
Zhongguo youzhi, Vol 49, Iss 5, Pp 71-77 (2024)
为了解决生物柴油制备过程中副产物甘油过剩、碳酸甘油酯产率低和催化剂回收困难的问题,以聚乙二醇600(PEG-600)为模板和分散剂,采用溶胶凝胶法制备镁铁氧体(MgFe2O4),以其为载体
Externí odkaz:
https://doaj.org/article/fd2fa89bdcab480791932a0a90442fd3
Autor:
Muhammad Al Muttaqii, Maja Pranata Marbun, Sugeng Priyanto, Andreas Sibuea, Wasinton Simanjuntak, Fuad Syafaat AM, Havier Samuel Huttur Silalahi Raja, Riza Alviany, Tri Maryani, Triastuti Sulistyaningsih, Erik Prasetyo, Sudibyo Sudibyo, Indri Yati
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 19, Iss 1, Pp 61-68 (2024)
Research has been carried out on making biodiesel from palm oil using natural zeolite catalysts impregnated with metal oxides such as zinc oxide and titanium oxide. This research aims to produce biodiesel using natural zeolite and ZnO-TiO2/NZ catalys
Externí odkaz:
https://doaj.org/article/d7579264d3be4452b4e66fc161931313
Autor:
Chengwei Liu, Zhenyang Lu, Jixuan Duan, Huaiqiang Dou, Zhitao Cao, Xinjie Xu, Xiaolin Zhang, Zhao Chen, Wende Xiao
Publikováno v:
Journal of CO2 Utilization, Vol 84, Iss , Pp 102846- (2024)
The transesterification of dimethyl carbonate (DMC) with ethanol to ethyl methyl carbonate (EMC) and diethyl carbonate (DEC) has attracted increasing attention, which could be greatly promoted by heterogeneous solid base catalysts. The K2CO3/Al2O3 so
Externí odkaz:
https://doaj.org/article/dc1d1a2a0a4840f7b0d20b0399d6b501
Autor:
Matheus Arrais Gonçalves, Hiarla Cristina Lima dos Santos, Thaissa Saraiva Ribeiro, Alexandre da Cas Viegas, Geraldo Narciso da Rocha Filho, Leyvison Rafael Vieira da Conceição
Publikováno v:
Arabian Journal of Chemistry, Vol 17, Iss 2, Pp 105521- (2024)
In the present study, a new magnetic acid solid catalyst composed of an agro-industrial waste (rice husk ash-RHA) magnetized with cobalt ferrite (CoFe2O4) and impregnated with MoO3 was synthesized and applied in the methyl transesterification reactio
Externí odkaz:
https://doaj.org/article/fef998e1d44d424cb01cfb70ad581fbb
Autor:
Snunkhaem Echaroj, Nattadon Pannucharoenwong, Keyoon Duanguppama, Phadungsak Rattanadecho, Suwipong Hemathulin
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 205-215 (2023)
This research investigated the effects of magnetic metal oxide catalysts and operating parameters on the transesterification of waste cooking oil to biodiesel in a continuous reaction setup. Ferric oxide (Fe2O3) was incorporated in alkaline oxide to
Externí odkaz:
https://doaj.org/article/9eb6817c07484e45b8d5f1479eb0a5a5
Autor:
Qi Wang, Jian Xiong, Hanghang Xu, Wenyuan Sun, Xiaoxu Pan, Shixin Cui, Siting Lv, Yinling Zhang
Publikováno v:
Molecules, Vol 29, Iss 12, p 2922 (2024)
In this study, hybrid skeleton material ZIF-8@ZIF-67 was synthesized by the epitaxial growth method and then was utilized as a carrier for encapsulating Pseudomonas fluorescens lipase (PFL) through the co-precipitation method, resulting in the prepar
Externí odkaz:
https://doaj.org/article/8ec3ebefd861406aa513bbfaf4d9da82
Autor:
M. C. Viegas, G. P. de Figueredo, S. F. Rodrigues, A. A. Cabral, M. A. M. Castro, M. M. Oliveira
Publikováno v:
Cerâmica, Vol 69, Iss 389, Pp 1-5 (2023)
Abstract CuCrO2 was synthesized by solution combustion synthesis (SCS) and applied as a heterogeneous catalyst to produce soybean biodiesel. The combustion reaction was carried out using urea as a fuel, and copper (II) and chromium (III) nitrates as
Externí odkaz:
https://doaj.org/article/43ffa316fea3475db1be3b5ff2668cb5
Publikováno v:
Energies, Vol 17, Iss 9, p 2103 (2024)
Biodiesel stands at the forefront as a replacement for fossil diesel in compression ignition engines, particularly in the transportation sector where diesel engines are the primary movers. However, biodiesel production is hampered by poor heat and ma
Externí odkaz:
https://doaj.org/article/636048c1246e4b99a300af880491c835
Autor:
Łukasz Szkudlarek, Karolina Chałupka-Śpiewak, Waldemar Maniukiewicz, Jadwiga Albińska, Małgorzata Iwona Szynkowska-Jóźwik, Paweł Mierczyński
Publikováno v:
Catalysts, Vol 14, Iss 4, p 260 (2024)
This work focuses on the study of biodiesel production from commercial rapeseed oil and methanol via transesterification reactions on monometallic copper and bimetallic copper–noble metal (platinum, ruthenium) catalysts supported on BEA zeolite. Th
Externí odkaz:
https://doaj.org/article/2e478fc5cb9946f88f809a1f7cbee737