Effect of calcination temperature on the physicochemical and catalytic properties of SZSBA-15 catalyst in the production of monopalmitin

2018 ◽  
Vol 205 (4) ◽  
pp. 506-518 ◽  
Author(s):  
Mohd Hizami Mohd Yusoff ◽  
Ahmad Zuhairi Abdullah
Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 579
Author(s):  
Sang-Ho Chung ◽  
Adrian Ramirez ◽  
Tuiana Shoinkhorova ◽  
Ildar Mukhambetov ◽  
Edy Abou-Hamad ◽  
...  

The Lebedev process, in which ethanol is catalytically converted into 1,3-butadiene, is an alternative process for the production of this commodity chemical. Silica–magnesia (SiO2–MgO) is a benchmark catalyst for the Lebedev process. Among the different preparation methods, the SiO2–MgO catalysts prepared by wet-kneading typically perform best owing to the surface magnesium silicates formed during wet-kneading. Although the thermal treatment is of pivotal importance as a last step in the catalyst preparation, the effect of the calcination temperature of the wet-kneaded SiO2–MgO on the Lebedev process has not been clarified yet. Here, we prepared and characterized in detail a series of wet-kneaded SiO2–MgO catalysts using varying calcination temperatures. We find that the thermal treatment largely influences the type of magnesium silicates, which have different catalytic properties. Our results suggest that the structurally ill-defined amorphous magnesium silicates and lizardite are responsible for the production of ethylene. Further, we argue that forsterite, which has been conventionally considered detrimental for the formation of ethylene, favors the formation of butadiene, especially when combined with stevensite.


2022 ◽  
Author(s):  
Shradha Gandhi ◽  
Rupinder Kaur ◽  
Vandana Sharma ◽  
Sanjay Mandal

Diverse ZnO nanostructures (ZnO_1 to ZnO_3) were synthesized by direct calcination of a chiral MOF precursor {[Zn4(µ3-OH)2(D-2,4-cbs)2(H2O)4].5H2O}n (Zn-CBS) at three different temperatures 600, 700 and 800 oC, respectively. On the...


2007 ◽  
Vol 8 (7) ◽  
pp. 1009-1016 ◽  
Author(s):  
Yiwei Zhang ◽  
Yuming Zhou ◽  
YianLi ◽  
Yu Wang ◽  
Yi Xu ◽  
...  

2011 ◽  
Vol 52 (6) ◽  
pp. 896-906 ◽  
Author(s):  
M. A. Shuvaeva ◽  
I. V. Delii ◽  
O. N. Mart’yanov ◽  
O. A. Bayukov ◽  
E. I. Osetrov ◽  
...  

2019 ◽  
Vol 481 ◽  
pp. 1277-1286 ◽  
Author(s):  
Yaohui Wu ◽  
Bingxian Chu ◽  
Meng Zhang ◽  
Yunan Yi ◽  
Lihui Dong ◽  
...  

Author(s):  
Kh. M. Minachev ◽  
D. A. Kondrat'ev ◽  
B. K. Nefedov ◽  
Yu. S. Khodakov ◽  
T. N. Bondarenko ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document