Removal Performance of Biomass Tar Utilizing Olivine Catalytic Decomposition and Oily Materials Absorption
Removal Performance of Biomass Tar Utilizing Olivine Catalytic Decomposition and Oily Materials Absorption
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橄榄石催化分解及油性物质吸附去除生物质焦油性能
DOI：
10.1002/ente.202100657
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发表时间：
2021-12
影响因子：
3.8
通讯作者：
Wang Xinye
中科院分区：
文献类型：
--
作者：
Meng Junguang;Zhao Zengli;Zhang Jubing;Wang Xinye
焦油是阻碍生物质气化发展的最大瓶颈之一。本文选择热熔（TF -橄榄石）和湿浸渍（WI -橄榄石）制备的Ni - Fe/橄榄石催化剂作为焦油原位裂解催化剂，并选择4种含油材料（废食用油[WCO]、废食用油基生物柴油[WCB]、棕榈油[PO]、棕榈油基生物柴油[PB]）作为后续焦油吸附剂。结果表明，吸油温度越高，吸油效率越高。PO和PB的吸收效率高于WCO和WCB。对焦油的吸收效率可达92.96%。加入TF -橄榄石作为原位催化剂后，进一步提高了生物质催化分解吸油净化系统中焦油的去除效率。在固定床实验装置上，生物质投料量为30 g h−1，焦油去除率达到99.96%。在生物质循环流化床气化装置中，当进料量为3.9 kg h−1时，焦油含量降至8.6 mg Nm−3，焦油去除率达99.89%。原位催化吸油净化系统为高效脱除生物质焦油提供了一条很有前途的途径。
Tar is one of the biggest bottlenecks hindering the development of biomass gasification. Herein, Ni−Fe/olivine catalysts prepared by thermal fusion (TF‐olivine) and wetness impregnation (WI‐olivine) are selected as the tar in situ cracking catalyst, and four oily materials (waste cooking oil [WCO], waste cooking oil‐based biodiesel [WCB], palm oil [PO], palm oil‐based biodiesel [PB]) are selected as subsequent tar absorbents. The results show that the tar efficiency increases with the increase in oil absorbent temperature. The absorption efficiency of PO and PB is higher than that of WCO and WCB. The absorption efficiency of tar can reach up to 92.96%. After adding TF‐olivine as the in situ catalyst, the removal efficiency of tar in the biomass catalytic decomposition oil absorbent purification system is further improved. In the fixed‐bed experimental device with a biomass feed rate of 30 g h−1, the tar removal rate reaches 99.96%. In the biomass‐circulating fluidized bed gasification device with a feed rate of 3.9 kg h−1, the tar content is reduced to 8.6 mg Nm−3, and the tar removal rate is up to 99.89%. The in situ catalytic oil absorption purification system provides a promising approach for efficient removal of biomass tar.