427 / 2018-08-10 09:38:55

Hierarchical porous carbon derived from biooil

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Bio-oil, the product of biomass pyrolysis, has been usually prepared for high quality liquid fuels and high value chemicals through the technologies of catalytic cracking, hydrogenation deoxidization, esterification, and so on. However, the cost of these processes is very high, and the bio-oil is easy to coking. Therefore, it is urgent to innovate the high-value utilization mode of bio-oil.
This research adopted a new idea for bio-oil utilization, aiming to synthesis carbon materials from the easily coking liquid bio-oil. The pore size distribution and pore structure can be directional designed precisely by template method, which is significantly different from biomass activation.
In this paper, the porous carbon materials have been prepared at 800℃ by using the pine oil as carbon precursor and magnesium acetate as the template. The weight ratio of magnesium acetate with pine oil exerts a marked effect on the porosity of the carbon. The results show that the porous carbon mainly composed of mesoporous pores has high specific surface area. When the weight ratio of magnesium acetate with pine oil is 2:1, the porous carbon YT21 achieves the highest specific surface area about 1409 m2/g, with the pore volume of 1.689 cm3/g, and the pore size distribution peak centers at 3 nm, the average pore size is 4.82 nm. Therefore, the high performance hierarchical porous carbon can be prepared from biooil by template method, which innovate a new high-value utiliazation mode of biooil.