Preparation of NiO / PC catalyst with plasma for cracking tar to produce flammable gas. (17th April 2020)

• Record Type: Journal Article
• Authors: Lei, Zhang; Xin, Chang; Jihao, Chen; Zhang, Lei; Zhenhua, Ma; Xin, Wen; Chao, Yang; Yang, Jia
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 21(2020)
• Page Start: 12000
• Page End: 12011
• Publication Date: 2020-04-17
• Subjects: Pyrolysis coke -- Plasma -- Tar -- Flammable gas -- Catalyst; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.02.122
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: To increase the use of lignite, the tar was pyrolyzed with pyrolysis coke (PC) to produce more combustible gases such as H2, CH4, and CO. NiO/PC catalyst with plasma was prepared, and the influence of PC and NiO/PC catalyst on flammable gas was investigated in a two-stage fixed reactor. The catalysts were characterized by SEM, BET, XPS and XRD to analyze the tar cracking mechanism. The results were: (1) PC was prepared at different heating rates, and when the heating rate reached 20 °C/min, the amount of flammable gas was 5.4 L. (2) NiO/PC catalyst was modified with plasma in three background gases withO2 being the best, mainly because of the increase of the oxygen functional groups. (3) PC was modified and calcined with plasma, and when the power reached 40 W, it produced the most combustible gas, and the volume could grow by 94.4%. Highlights: The lignite is pyrolyzed using solid waste pyrolysis coke as a catalyst. Modified pyrolysis coke is used to crack tar to produce more flammable gases. The capacity of plasma-modified NiO / PC catalyst to crack tar has been improved.