市政污泥生物炭负载氧化钙催化剂的制备及催化酯交换反应性能研究

doi:10.11896/cldb.21110211

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Abstract Municipal sludge biochar with surface-anchoredcalcium oxide (CaO@SBC) were facilely prepared following a soaking, drying and pyrolysis process on basis of the municipal sludge biochar matrix. The influences of methanol/oil molar ratio, reaction time, catalyst dosage and temperature on catalytic activity were investigated. Under reaction conditions of the molar ratio of alcohol to oil, the reaction time, the catalyst dosage and the reaction temperature were 9∶1, 180 min, 7wt% and 100 ℃, respectively, the highest biodiesel yield up to 97.2% was achieved with the 30CaO@SBC-600. The biodiesel yield up to 98.0% was achieved in the 110 ℃, and it maintained as high as 85.6% even after ten cycles of consecutively alternate catalysis and regeneration process. Along with renewable and efficient catalyst, this hybrid catalyst offered a novel way for value-added utilization of municipal sludge.

Key words： municipal sludge biochar calcium nitrate calcium oxide biodiesel heterogeneous catalyst

Published: 25 May 2023 Online: 2023-05-23

CLC number:

TQ644.5

Fund:National Key R & D Program of China (2018YFC1901204), Natural Science Foundation of Guangdong Province (2019A1515011570, 2022A1515011653), Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0101), and Youth Innovation Promotion Association CAS.

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	Articles by authors
	YANG Jizhang
	LI Denian
	TAN Qiang
	LIAO Daxiu
	YUAN Haoran
	CHEN Yong

Cite this article:

YANG Jizhang,LI Denian,TAN Qiang, et al. Preparation of CaO-loaded Municipal Sludge Biochar as Excellent Hybrid Catalyst for Transesterification[J]. Materials Reports, 2023, 37(10): 21110211-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21110211 OR http://www.mater-rep.com/EN/Y2023/V37/I10/21110211

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