合成气
催化作用
热解
产量(工程)
化学
化学工程
热解油
大气压力
有机化学
材料科学
复合材料
海洋学
工程类
地质学
作者
Xinmiao Yu,Ying Shao,Liyuan Qin
标识
DOI:10.1016/j.jaap.2023.106125
摘要
The ex-situ catalytic upgrading of pine nut shell pyrolysis vapor was conducted over Ni/HZSM-5 and Ni-Co/HZSM-5 catalysts using a fixed bed reactor. The effects of the catalytic temperature (500-800 °C) and pressure (0.1-0.6 MPa) on the yield and composition of the products were investigated. The physicochemical properties of bio-oil were visibly improved by increasing the temperature and pressure, and the products mainly contained light aromatic hydrocarbons, aliphatic hydrocarbons and phenolic compounds. The addition of Co significantly enhanced the deoxidation ability of the Ni-Co/HZSM-5 catalyst, and the BTXEN yield of the upgraded bio-oil increased to 15.3 mg/g with a heating value of 36.80 MJ/kg. Less water was generated in pressurized catalysts, and the syngas yield significantly increased with increasing pressure. Based on mechanistic considerations, atmospheric pressure catalysis favors alkylation, and high-pressure catalysis increases the syngas yield.
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