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Chemical looping co-gasification of wheat straw and lignite with calcium-enhanced iron-based oxygen carrier for syngas production

Fuel Processing Technology, ISSN: 0378-3820, Vol: 227, Page: 107108
2022
  • 24
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    24
    • Citation Indexes
      24
  • Captures
    17

Article Description

The use of biomass to partially replace fossil fuels to produce syngas is an effective way to reduce net CO 2 emissions. The chemical looping co-gasification of wheat straw and lignite with iron-based oxygen carrier (OC) was studied using a thermogravimetric analyzer (TGA) and a fixed-bed reactor. TGA results provided evidence of interaction between the wheat straw and lignite at a mass ratio of 1:1. Further, the effects of temperature, oxygen carrier/mixed feedstocks (OC/MF) ratio, steam/mixed feedstocks (S/MF) ratio, and CaO /mixed feedstocks (CaO/MF) ratio in the fixed-bed reactor were investigated. The results showed that the optimal product distribution was achieved under the conditions of 950 °C, OC/MF = 1, S/MF = 4, and CaO/OC = 0.75. The H 2 /CO ratio of the syngas was in the range of 1.84–1.93. This work provides a new strategy for preparing syngas with high yield and low greenhouse gas emissions.

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