A study on fixed bed gasification of treated solid refuse fuel residue
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A study on fixed bed gasification of treated solid refuse fuel residue
- 1. Air & Waste Engineering Laboratory YONSEI UNIVERSITY A Study on Fixed Bed Gasification of Treated Solid Refuse Fuel Residue M. T. Alam1 , J. S. Lee1 , W. S. Yang1 , S. W. Park1 , J. J. Kang1 , S. Y. Lee1 , Y. C. Seo1* , S. R. Chennamaneni2 , V. K. Kandasamy2 1 Department of Environmental Engineering, Yonsei University, Republic of Korea 2 CHOGEN POWERS, Phase 1, Paigah Colony, S.P. Road, Secunderabad, India *Corresponding author: seoyc@yonsei.ac.kr 6th International Conference on Solid Waste Management Jadavpur University, Kolkata, India 24-26 November, 2016
- 2. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction 2. Materials and Methods 3. Results and Discussion 4. Conclusion ContentContent
- 3. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction
- 4. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction Waste generation rate in Korea Source: Environment statistics yearbook, Korean Ministry of Environment
- 5. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction 1. Introduction Remarkable amount of MSW contains materials such as paper, plastics, textiles, wood etc., which can be efficiently be recycled for resource recovery. Solid refuse fuel(SRF) is an alternative fuel produced from the combustibles in MSW
- 6. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction Waste to energy(gases, fuels, chemicals) by gasification Syngas Clean-up Synthesis Gas Gasification Reactor Slag, Vitrified Slag, and/or Ash SRF Power Generation + Electrical Energy + Steam Biochemical Process Fuels & Chemicals such as for example Ethanol, Methanol, Methane, and Others Chemistry Options Catalyst Hydrogen Catalyst Ethanol Mixed Alcohols Catalyst Olefins Catalyst Liquefied Petroleum Gas(LPG) Naphtha Kerosene/Diesel Lubes Catalyst Waxes Gasoline Catalyst Oxo chemicals e.g., Ketones Catalyst Synthetic Natural Gas Catalyst Ammonia Power Options Biochemistry Options Source: Municipal Solid Waste to Energy Conversion Processes, Gary C. Young
- 7. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction SRF manufacturing process
- 8. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 1. Introduction Purpose of research To find out the viability of syngas production from TSRFR 3 2 To analyze the characteristics and trend of syngas and gas pollutants 1 To find out the optimum condition for TSRFR gasification
- 9. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 2. Materials and Methods
- 10. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 2. Materials and Methods Proximate analysis (wt.%) Moisture 16.48 Volatile 74.10 Fixed-C 3.18 Ash 6.23 Elemental analysis (wt.%) Dry basis C 61.27 H 9.15 O 29.05 N 0.07 S 0.06 Higher heating value (kcal/kg) 4,081 Basic characteristics
- 11. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 2. Materials and Methods TG curve of feedstock
- 12. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 2. Materials and Methods Schematic diagram of lab-scale reactor
- 13. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 2. Materials and Methods Condition of gasification experiment Item Condition Feedstock Solid refuse fuel Temperature 900 o C Reactor type Fixed bed ER(Equivalent Ratio)* 0.2, 0.4, 0.6 Feeding rate 1 g/min Particle size of feedstock < 10 mm Gasification agent O2
- 14. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 3. Results and Discussion
- 15. Air & Waste Engineering Laboratory YONSEI UNIVERSITY Results and Discussion Composition of syngas
- 16. Air & Waste Engineering Laboratory YONSEI UNIVERSITY Results and Discussion Dry gas yield
- 17. Air & Waste Engineering Laboratory YONSEI UNIVERSITY Results and Discussion Cold gas efficiency & carbon conversion
- 18. Air & Waste Engineering Laboratory YONSEI UNIVERSITY Results and Discussion Concentration of gas pollutants
- 19. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 4. Conclusion
- 20. Air & Waste Engineering Laboratory YONSEI UNIVERSITY 4. Conclusion - The main components were H2, CO, CH4 and CO2. -With increasing ER, CO, H2 and CH4 concentration tended to decrease whereas CO2 tended to increase. - Highest syngas yield with highest LHV was obtained at ER 0.2 -With increasing ER CGE showed decreasing trend, Whereas carbon conversion showed decreasing trend -Highest CGE obtained at ER 0.2 - Depending on ER, concentration of NH3 ranged between 123-195 ppm and concentration of H2S ranged between 8-26 ppm -Both of the gaseous pollutants showed increasing trend with increasing ER. -At ER 0.2 lowest amount of gaseous pollutants were emitted Syngas characteristics of gasification Emission of gaseous pollutants
- 21. Air & Waste Engineering Laboratory YONSEI UNIVERSITY Thank You For Your Kind Attention
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- I would like to discuss about ‘A study on gasification characteristics of fluff SRF in fixed and fluidized bed reactor’
- This is my content.
- Waste fed in the gasification reactor, through gasification reaction it produces syngas and also makes residues example slag and ash. Later we clean the syngas, that can be used for producing electricity and steam generation or making chemicals through chemical process. It can be converted into Ethanol, methanol in biochemical process.
- Waste fed in the gasification reactor, through gasification reaction it produces syngas and also makes residues example slag and ash. Later we clean the syngas, that can be used for producing electricity and steam generation or making chemicals through chemical process. It can be converted into Ethanol, methanol in biochemical process.
- Purpose of research is to find out the Syngas characteristics of waste gasification; composition and trend. This research is primary research for power plant co-gasification.
- Feedstock was made from household waste, as fluff type. In order to fed in the reactor, we conducted pretreatment, we packed in vinyl after milling under 10mm. Left 3 pictures are showing feedstock&apos;s and their condition. Using this experiments SRF, Proximate analysis results moisture 16%, volatile 74%, Fixed-Carbon 3% and 6% ash. Most of raw materials compose Carbon, Oxygen and hydrogen. The higher heating value is 4000kcal/kg.
- Feedstock was made from household waste, as fluff type. In order to fed in the reactor, we conducted pretreatment, we packed in vinyl after milling under 10mm. Left 3 pictures are showing feedstock&apos;s and their condition. Using this experiments SRF, Proximate analysis results moisture 16%, volatile 74%, Fixed-Carbon 3% and 6% ash. Most of raw materials compose Carbon, Oxygen and hydrogen. The higher heating value is 4000kcal/kg.
- This slide shows schematic diagram. No. 1 is semi-batch type feeder and No.2 used windbox in fluidized bed. No.3 is reactor, No.4 and 5 for produced gas treatment are cyclone and wet scrubber. No.7 is microGC, installed No6. silica gel before the 7. All gaseous pass into No8 drygas meter.
- This table is showing operating condition of gasification experiment. The temperature was 900 degrees Celsius, reactor type were fixed and bubbling fluidized bed. Equivalent ratio is 0.2, 0.4, 0.6 and feeding rate 1g/min. Feedstock sized is under 10mm, and gasification agent was oxygen.
- With Increasing ER, Syngas, HHV and Methane are showing decreasing trend. In case of carbon-dioxide, it is showing increasing trend with increasing ER. It appears this tendency is due to the input of the oxygen, with increased ER. Higher heating value of gas varied from 2200 to 2500 kcal/kg.
- This figure shows Sulfur oxides and nitrogen oxides of fixed and fluidized bed. with increasing ER, overall pollutants increased. The fixed bed reactor generated more pollutant than fluidized bed. As the residence time become longer, gasification reaction progressed further in fixed bed which generated more pollutants.
- This figure shows Sulfur oxides and nitrogen oxides of fixed and fluidized bed. with increasing ER, overall pollutants increased. The fixed bed reactor generated more pollutant than fluidized bed. As the residence time become longer, gasification reaction progressed further in fixed bed which generated more pollutants.
- This figure shows Sulfur oxides and nitrogen oxides of fixed and fluidized bed. with increasing ER, overall pollutants increased. The fixed bed reactor generated more pollutant than fluidized bed. As the residence time become longer, gasification reaction progressed further in fixed bed which generated more pollutants.