Template-induced Al distribution in MOR and enhanced activity in dimethyl ether carbonylation

2020 ◽  
Vol 22 (20) ◽  
pp. 11374-11381
Author(s):  
Ying Li ◽  
Man Yu ◽  
Kai Cai ◽  
Meiyan Wang ◽  
Jing Lv ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Dimethyl Ether ◽  
Enhanced Activity ◽  
Al Distribution

Template-induced Al distribution offers a strategy to improve the efficiency of DME carbonylation on H-MOR zeolite, which is a key step of ethanol production from syngas.

Effect of N-Methyl-2-pyrrolidone on Al Distribution in MOR and Enhanced Activity in DME Carbonylation Reaction

2021 ◽  
Vol 50 (8) ◽  
pp. 1562-1565
Author(s):  
Mingxue Shi ◽  
Yaquan Wang ◽  
Chao Sun ◽  
Taotao Zhao ◽  
Jingjing Zhao ◽  
...  
Keyword(s):  
Carbonylation Reaction ◽  
Enhanced Activity ◽  
Al Distribution

scholarly journals Technoeconomic assessment of lignocellulosic ethanol production via DME (dimethyl ether) hydrocarbonylation

Energy ◽  
2012 ◽  
Vol 44 (1) ◽  
pp. 891-901 ◽  
Author(s):  
P. Haro ◽  
P. Ollero ◽  
A.L. Villanueva Perales ◽  
C. Reyes Valle
Keyword(s):  
Ethanol Production ◽  
Dimethyl Ether ◽  
Lignocellulosic Ethanol

Morphology-Dependent Catalytic Performance of Mordenite in Carbonylation of Dimethyl Ether: Enhanced Activity with High c/b Ratio

2019 ◽  
Vol 11 (27) ◽  
pp. 24000-24005 ◽  
Author(s):  
Ying Li ◽  
Zehua Li ◽  
Shouying Huang ◽  
Kai Cai ◽  
Zheng Qu ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Catalytic Performance ◽  
Enhanced Activity

Enhanced activity and stability over hierarchical porous mordenite (MOR) for carbonylation of dimethyl ether: Influence of mesopores

2020 ◽  
Vol 48 (8) ◽  
pp. 960-969
Author(s):  
Xiao-sheng WANG ◽  
Ran-jia LI ◽  
Chang-chun YU ◽  
Yu-xiang LIU ◽  
Chun-ming XU ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Enhanced Activity ◽  
Hierarchical Porous

DECOLOURIZATION AND COD REMOVAL OF WASEWATER FROM ETHANOL PRODUCTION PROCESS FROM MOLASSES BY COAGULANTION USING INORGANIC ALUM

2010 ◽  
Vol 13 (3) ◽  
pp. 92-102
Author(s):  
Trung Duc Le
Keyword(s):  
Ethanol Production ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Treated Wastewater ◽  
Treatment Processes ◽  
Physico Chemical ◽  
Biological Methods ◽  
Treatment Step ◽  
Main Material

The industrial production of ethanol by fermentation using molasses as main material that generates large quantity of wastewater. This wastewater contains high levels of colour and chemical oxygen demand (COD), that may causes serious environmental pollution. Most available treatment processes in Vietnam rely on biological methods, which often fail to treat waste water up to discharge standard. As always, it was reported that quality of treated wastewater could not meet Vietnameses discharge standard. So, it is necessary to improve the treatment efficiency of whole technological process and therefore, supplemental physico-chemical treatment step before biodegradation stage should be the appropriate choice. This study was carried out to assess the effect of coagulation process on decolourization and COD removal in molasses-based ethanol production wastewater using inorganic coaglutant under laboratory conditions. The experimental results showed that the reductions of COD and colour with the utilization of Al2(SO4)3 at pH 9.5 were 83% and 70%, respectively. Mixture FeSO4 – Al2(SO4)3 at pH 8.5 reduced 82% of colour and 70% of COD. With the addition of Polyacrylamide (PAM), the reduction efficiencies of colour, COD and turbidity by FeSO4 – Al2(SO4)3 were 87%, 73.1% and 94.1% correspondingly. It was indicated that PAM significantly reduced the turbidity of wastewater, however it virtually did not increase the efficiencies of colour and COD reduction. Furthermore, the coagulation processes using PAM usually produces a mount of sludge which is hard to be deposited.

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