首页|Experimental evaluation of a 10-kW parabolic trough solar reactor prototype driving Ni-based chemical looping redox cycle with methane for solar fuel production

Experimental evaluation of a 10-kW parabolic trough solar reactor prototype driving Ni-based chemical looping redox cycle with methane for solar fuel production

扫码查看
原文链接
  • 万方数据
Experimental evaluation of a 10-kW parabolic trough solar reactor prototype driving Ni-based chemical looping redox cycle with methane for solar fuel production
Solar fuels can be cost-effectively produced using solar-driven thermochemical processes.Hybridizing thermochemical pro-cesses can not only effectively utilize solar energy but also achieve clean conversion of fossil fuels.With this method,the solar energy level can be upgraded,and the irradiation fluctuation can be solved.It is worth noting that solar reactors play an important role in this technology.In this study,we demonstrated a 10-kW parabolic trough solar-driven reactor prototype for methane reforming and solar fuel production.The primary setup of the experimental platform consisted of a trough concentrating solar collector,chemical looping reforming reactors with indirect heat transfer,and associated auxiliary equipment.Experiments on the chemical looping redox cycle were conducted using nickel-based NiO/NiAl2O4 as the OC under different direct normal irradiation(DNI)from 740 to 920 W/m2.Under irradiation at approximately 920 W/m2,the methane conversion initially increased to 92％before declining to 75％from 0 to 900 s and then to 2500 s.Under these conditions,the syngas concentration increased from 30％to 57％and the solar-to-fuel efficiency reached 59％.The oxygen transfer rate during the chemical looping redox cycle was also experimentally investigated.Cyclic redox cycle experiments were conducted for 540 min of long-term operation to assess the duration and adaptability performance.The fractional oxidation can consistently return to almost 1.0 after each redox cycle,indicating strong reactivity and regenerability when exposed to different levels of DNI.The reactivity of the chemical looping redox cycle during typical autumn and winter days was also investigated and discussed.This study aimed to prove that this 10-kW parabolic trough reactor prototype can harness 500℃ solar heat to drive efficient methane reforming,offering a promising avenue for solar fuel production.

solar fuelsolar reactorchemical loopingthermochemical redox cyclemethane reforming

JIANG QiongQiong、CAO YaLi、SUN Fan、XING XueLi、HONG Hui

展开 >

Key Laboratory of Power Station Energy Transfer Conversion and System of MOE,School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China

State Power Investment Corporation Hydrogen Energy,Beijing 100033,China

School of Aeronautics and Astronautics,University of Chinese Academy of Sciences,Beijing 100049,China

Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China

China Huaneng Group Clean Energy Association Research Institute,Beijing 102209,China

展开 >

solar fuel solar reactor chemical looping thermochemical redox cycle methane reforming

2024

10.1007/s11431-024-2742-4

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子：1.056
ISSN：1674-7321
年,卷(期)：2024.67(12)