title: Low-temperature co-pyrolysis behaviours and kinetics of oily sludge: effect of agricultural biomass.
abstract: Pyrolysis is potentially an effective treatment of oily sludge for oil recovery, and its kinetics and efficiency are expected to be affected by additives. In the present study, the pyrolysis parameters, including heating rate, final pyrolysis temperature, and pyrolysis time of oily sludge in the presence of agricultural biomass, apricot shell, were systematically explored. As a result, maximum oil recovery is achieved when optimizing the pyrolysis conditionas15 K/min, 723 K, and 3 h for heating rate, final pyrolysis temperature, and pyrolysis time, respectively. Thermogravimetric experiments of oily sludge samples in the presence of various biomasses conducted with non-isothermal temperature programmes suggest that the pyrolysis process contains three stages, and the main decomposition reaction occurs in the range of 400-740 K. Taking Flynn-Wall-Ozawa analysis of the derivative thermogravimetry and thermogravimetry results, the activation energy (Ea) values for the pyrolysis of oily sludge in the presence and absence of apricot shell were derived to be 35.21 and 39.40 kJ mol-1, respectively. The present work supports that the presence of biomass promotes the pyrolysis of oily sludge, implying its great potential as addictive in the industrial pyrolysis of oily sludge.
authors.affiliation: a Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments , Chinese Academy of Sciences , Urumqi , People's Republic of China.|b School of Chemical Engineering , Northwest University , Xi'an , People's Republic of China.
authors.forename: Xiehong
authors.initials: X
authors.lastname: Zhou
authors.affiliation: a Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments , Chinese Academy of Sciences , Urumqi , People's Republic of China.
authors.forename: Hanzhong
authors.initials: H
authors.lastname: Jia
authors.affiliation: c School of Chemistry and Chemical Engineering , Xi'an Shiyou University , Xi'an , People's Republic of China.
authors.forename: Chengtun
authors.initials: C
authors.lastname: Qu
authors.affiliation: b School of Chemical Engineering , Northwest University , Xi'an , People's Republic of China.
authors.forename: Daidi
authors.initials: D
authors.lastname: Fan
authors.affiliation: a Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments , Chinese Academy of Sciences , Urumqi , People's Republic of China.
authors.forename: Chuanyi
authors.initials: C
authors.lastname: Wang
mesh_terms: D000383:Agriculture; D018533:Biomass; D017745:Incineration; D031324:Juglans; D007700:Kinetics; D009821:Oils; D012275:Oryza; D000068219:Prunus armeniaca; D059027:Recycling; D012722:Sewage; D013696:Temperature; D013818:Thermogravimetry; D014934:Wood
chemical_list: D009821:Oils; D012722:Sewage
keywords: Oily sludge; biomass; kinetic analysis; oil recovery; pyrolysis