Highly selective catalytic hydrodeoxygenation of Caromatic–OH in bio-oil to cycloalkanes on a Ce–Ni–W–B amorphous catalyst

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 37288-37295 ◽  
Author(s):  
Weiyan Wang ◽  
Zhiqiang Qiao ◽  
Kun Zhang ◽  
Pengli Liu ◽  
Yunquan Yang ◽  
...  
Keyword(s):  
Energy Saving ◽  
High Activity ◽  
Reaction Temperature ◽  
Consumption Reduction ◽  
Bio Oil ◽  
Amorphous Catalysts

Ce–Ni–W–B amorphous catalysts exhibited high activity in the hydrodeoxygenation (HDO) of Caromatic–OH. The deoxygenation degree was up to 98.1% with low aromatics selectivity at 498 K. Both the aromatics content and reaction temperature were decreased, which realized the energy saving and consumption reduction in the HDO process.

Catalytic Cracking of Oleic Acid over Zeolites

2019 ◽  
Vol 814 ◽  
pp. 517-521
Author(s):  
Md Amirul Alam Kanak ◽  
Ji Yeon Park ◽  
In Gu Lee
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Catalytic Cracking ◽  
Gasoline Fraction ◽  
Coffee Waste ◽  
Bio Oil ◽  
Zeolite Type ◽  
Mcm 41

Compared with bio-oil from sawdust (common lignocellulosic biomass), the bio-oil obtained by fast pyrolysis of coffee waste has a unique feature to contain a significant amount of fatty acids such as oleic acid and palmitic acid. It is necessary to conduct C-C cracking of fatty acids present in coffee-waste bio-oil to maximize gasoline fraction (C5-C12) production. In this work, catalytic cracking of oleic acid as a model compound for the fatty acids was carried out in batch reactors to understand the effect of major parameters such as zeolite type (HZSM-5, SAPO-11, MCM-41), reaction temperature (380-500 °C), and reaction time (0-50 min) on gasoline fraction production. The GC-MS analysis showed hydrocarbons and aromatics to be major compounds present in the gasoline fraction irrespective of zeolite type and reaction conditions. At 400 °C and 0 min reaction time, the yield of gasoline fraction was 18.6, 6.7, and 33.1 % with HZSM-5, SAPO-11, and MCM-41, respectively. As reaction temperature increased to 500 °C, the total gasoline fraction yield reached 43.7 and 22.7 % with SAPO-11 and MCM-41, respectively. In all the catalysts, the content of aromatic compounds in the gasoline fraction increased with the increase in reaction temperature and reaction time. Meanwhile, the formation of hydrocarbons in the gasoline fraction showed different optimum temperature with catalyst: 11.8 % yield with SAPO-11 at 500 °C and 27.0 % yield with MCM-41 at 400 °C.

Energy Consumption Reduction Decomposition Model Based on Input-Output Analysis and Comprehensive Evaluation

2013 ◽  
Vol 291-294 ◽  
pp. 1221-1226
Author(s):  
Run Bo Kang ◽  
Fen Yang ◽  
Ye Qing Guan
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Comprehensive Evaluation ◽  
Jiangsu Province ◽  
Input Output ◽  
Output Table ◽  
Energy Consumption Reduction ◽  
Consumption Reduction ◽  
Consumption Index ◽  
Consumption Intensity

According to the input-output table and energy consolidated balance sheet of 2002 and 2007, compiled physical-value energy input-output table of six major departments and then analyzed direct energy consumption index and completely energy consumption index of Jiangsu province. Using index decomposition method and SDA method, analyzed influence of changes in technical efficiency and structure on the energy consumption intensity fluctuation respectively from the whole and each department, conducted comprehensive evaluation index to comprehensively evaluate and analyze six major departments in Jiangsu province, so as to find out the main cause of the energy consumption intensity changes in Jiangsu province, and then according to the energy consumption reduction target in the “12th Five-Year” plan, we put forward relevant countermeasures：adhere to structure, technology and management energy saving carrying out together, put the industry as the main attack direction of energy saving and encourage and support enterprises to increase investment in science and technology.

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