Co-upgrading of raw bio-oil with kitchen waste oil through fluid catalytic cracking (FCC)

Wenchao Ma, Bin Liu, Ruixue Zhang, Tianbao Gu, Xiang Ji, Lei Zhong, Guanyi Chen, Longlong Ma, Zhanjun Cheng and Xiangping Li

Applied Energy, 2018, vol. 217, issue C, 233-240

Abstract: Raw bio-oil was produced from fast pyrolysis of pine sawdust in a fluidized-bed boiler at 550 °C. Then the raw bio-oil is partially mixed with kitchen waste oil (100:0, 50:50, 0:100 by weight) and subsequently subjected to off line co-catalytic cracking process for upgrading over HZSM-5. The raw bio-oil mixed with kitchen waste oil test shows that the co-catalytic cracking improves the organic bio-oil yield and inhibits the coke formation. The oxygen content of organic bio-oil decreased significantly after upgrading. The reaction pathway of co-upgrading is proposed, which shows that kitchen waste oil, as a hydrogen supplier, transform hydrogen from high saturation degree to the unsaturation oxygenated compounds to form hydrocarbons. Co-catalytic cracking process of raw bio-oil and kitchen waste oil not only can be used in raw bio-oil upgrading but also can recycle kitchen waste oil with relatively low cost. Moreover, the deactivation catalysts are analyzed by TG-FTIR (Thermogravimetric-Fourier Transform Infrared spectroscopy) and SEM (Scanning Electron Microscope).

Keywords: Bio-oil; Fluid catalytic cracking (FCC); Upgrading; Kitchen waste oil (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

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DOI: 10.1016/j.apenergy.2018.02.036

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