Synergistic effects of co-gasification of municipal solid waste and biomass in fixed-bed gasifier

Cai，Jianjun1; Zeng，Ronghua1; Zheng，Wenheng1; Wang，Shubin2; Han，Jie1; Li，Kaiqiang3; Luo，Ming4; Tang，Xingying5

2021-04-01

10.1016/j.psep.2020.09.063

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION   影响因子和分区

0957-5820

The co-gasification of refuse derived fuel (RDF) and biomass is a promising technology for environmentally friendly municipal solid waste (MSW) utilization. Herein, we investigated the co-gasification of RDF and straw mixtures. The development of syngas suggested that higher temperature and equivalence ratio (ER) values promote syngas yield during gasification and co-gasification. Temperature plays a positive key role in gas yield and carbon conversion efficiency once the ER is higher than 0.3 during co-gasification. Except for an ER of 0.3, synergistic enhancements in carbon conversion efficiency, gas yield, and cold gas efficiency were observed for co-gasification. The positive synergistic effects of co-gasification mainly appeared in lower ER (0.1−0.2) and higher temperatures (800−900 °C); however, the negative synergistic effects more tend to appear in higher ER (0.3−0.4). From the development of bottom ash in co-gasification, at higher temperature and ER values, potassium in the bottom ash was favored to stay in sulfur-containing compounds; whereas at lower temperature and ER values, potassium preferred to exist in potassium chloride. A higher calcium content more easily enriched in small particles that were integrated into aluminosilicate led to the formation of sticking ash particles, which could promote significant melting agglomeration. However, these melting agglomerations could be suppressed by adding straw into the RDF. These results provide a feasible method for the resource utilization of MSW.

Biomass Gasification Municipal solid waste Synergistic enhancement Syngas

EI ; SCI

英语

其他

WOS:000637217000001

20204209342700

Municipal solid waste ; Potash ; Potassium chloride ; Ashes ; Carbon ; Conversion efficiency ; Gasification ; Melting ; Agglomeration ; Ash handling ; Synthesis gas

Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Industrial Wastes:452.3 ; Energy Conversion Issues:525.5 ; Materials Handling Equipment:691.1 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

ENVIRONMENT/ECOLOGY

2-s2.0-85092269087

Scopus

1.School of Architecture and Traffic,Guilin University of Electronic Technology,Guilin,541004,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Guilin Shenzhen Energy Environment Co.,Ltd.,Guilin,541004,China
4.School of Energy and Power Engineering,Jiangsu University,Zhenjiang,212013,China
5.School of Marine Sciences,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea,Guangxi University,Nanning,530004,China

Cai，Jianjun,Zeng，Ronghua,Zheng，Wenheng,et al. Synergistic effects of co-gasification of municipal solid waste and biomass in fixed-bed gasifier[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2021,148:1-12.

Cai，Jianjun.,Zeng，Ronghua.,Zheng，Wenheng.,Wang，Shubin.,Han，Jie.,...&Tang，Xingying.(2021).Synergistic effects of co-gasification of municipal solid waste and biomass in fixed-bed gasifier.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,148,1-12.

Cai，Jianjun,et al."Synergistic effects of co-gasification of municipal solid waste and biomass in fixed-bed gasifier".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 148(2021):1-12.