scholarly journals ESTIMATION OF THE POSSIBILITY OF TRANSITION OF THE FACILITY FOR METHANOL SYNTHESYS TO WORK WITH LOW-TEMPERATURE CATALYSTS

2022 ◽  
Vol 1 (15) ◽  
pp. 97-100
Author(s):  
Marina Chernigovskaya ◽  
Ivan Semenov

In the investigation, the modeling of the facility for the methanol synthesis was carried out under the conditions of the replacement of the catalyst. The process model was compiled using the DWSim software package. Based on the calculations, the possibility of working the high-pressure methanol plant with a low-temperature catalyst was evaluated

2021 ◽  
pp. 160309
Author(s):  
M. Osorio-García ◽  
K. Suárez-Alcántara ◽  
Y. Todaka ◽  
A. Tejeda-Ochoa ◽  
M. Herrera Ramírez ◽  
...  

2020 ◽  
pp. 146808742096933
Author(s):  
Xiangyu Meng ◽  
Sicheng Liu ◽  
Jingchen Cui ◽  
Jiangping Tian ◽  
Wuqiang Long ◽  
...  

A novel method called high-pressure air (HPA) jet controlled compression ignition (JCCI) based on the compound thermodynamic cycle was investigated in this work. The combustion process of premixed mixture can be controlled flexibly by the high-pressure air jet compression, and it characterizes the intensified low-temperature reaction and two-stage high-temperature reaction. The three-dimensional (3D) computational fluid dynamics (CFD) numerical simulation was employed to study the emission formation process and mechanism, and the effects of high-pressure air jet temperature and duration on emissions were also investigated. The simulation results showed that the NOx formation is mainly affected by the first-stage high-temperature reaction due to the higher reaction temperature. Overall, this combustion mode can obtain ultra-low NOx emission. The second-stage high-temperature reaction plays an important role in the CO and THC formation caused by the mixing effect of the high-pressure air and original in-cylinder mixture. The increasing air jet temperature leads to a larger high-temperature in-cylinder region and more fuel in the first-stage reaction, and therefore resulting in higher NOx emission. However, the increasing air jet temperature can significantly reduce the CO and THC emissions. For the air jet duration comparisons, both too short and too long air jet durations could induce higher NOx emission. A higher air jet duration would result in higher CO emission due to the more high-pressure air jet with relatively low temperature.


1985 ◽  
Vol 119 (1) ◽  
pp. 225-232 ◽  
Author(s):  
Bernard Galiois ◽  
Jacques Gaultier ◽  
Christian Hauw ◽  
Daniel Chasseau ◽  
Alain Meresse ◽  
...  

1999 ◽  
Vol 48 (1-4) ◽  
pp. 223-226
Author(s):  
V. Ramgopal Rao ◽  
W. Hansch ◽  
S. Mahapatra ◽  
D.K. Sharma ◽  
J. Vasi ◽  
...  

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