Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
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Catalytic pyrolysis of CTL was carried out at 450 °C for 2 h with the ratio of CTL/ SO42-/Al-MCM-41 is 1: 0.5 (wt%)
Results
In
Figure
Figure
2, the
2e. FxTiIsRtsepenctcraeofoSfO4S2-/AOl-4M2C-Mw-41assamcpelers.tificated
Figure 1. The schematic diagram of the fixed bed reactor
Methods
The preparations of SO42-/Al-MCM-41 catalysts with different ratio of Si/Al (8,10,12,15,25,36) were proceeded by the impregnation of sulfuric acid on AlMCM-41 catalysts with same ratios. The alga was collected from Taihu Lake in China in 2010 summer.
at
609 cm-1 for the stretching vibrations of HSO4- and
the weak peak of S=O stretching vibration at 1390
cm-1 [2, 3] .
The yield of product of different phases shown in Figure 3 illustrated that when Si/Al came to low value, the acidity can cause the bio-oil molecule to realize further cracking and produce more gas products. However, as Si/Al ratio came to high value, the weakening of acidity can lead to the non-complete cracking and enhance the production of organic fraction in bio-oil.
The bio-oil obtained from direct pyrolysis had higher content of oxygenic compounds and lower heating value compared to fossil fuels. In order to improve the quality of the bio-oil, the catalysts bearing deoxygenation function during catalytic pyrolysis should be explored.
The catalytic pyrolysis of cyanobacteria of CTL over SO42-/Al-MCM-41 catalysts in situ were studied in the present work. The equipment for the catalytic pyrolysis was the same as that used by Pan Pan et al [1].
Introduction
The cyanobacteria from Taihu Lake(CTL), which caused threat to the water ecological balance, can be converted to bio-oil which was beneficial for environmental protection and renewable energy development. Therefore, it is of great significance to produce bio-oil from CTL with high yield and quality.
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Production of Bio-oil by Catalytic Pyrolysis of Cyanobacteria of Taihu Lake over SO42-/Al-MCM-41
B.H. Zhao , Y. Zeห้องสมุดไป่ตู้g , D.M. Tong , C.W. Hu*
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