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Main8

Main8Development of core technology for production of clean liquid hydrocarbon from organic wastes
  • Principal Investigator: Seoktae Kang
  • Institution: Kore Advanced Institute of Science and Technology
  • LAB telephone: +82-42-350-3635
  • E-mail: stkang@kaist.ac.kr

Goal of Research project

  • Development of an integrated technology for clean liquid fuel production from organic wastes
    • Transformation of organic wastes to high quality biogas
    • Process development for low H2S content in biogas
    • Development of Fischer-Tropsch (FT) catalyst for the selective production of liquid hydrocarbons (C5-C20) from H2S-free biogas
    • Demonstration of package system for clean fuel production from organic wastes

Research contents

  • H₂S removal from biogas for mitigation of sulfur poisoning in catalytic reforming process
    • Development of the pretreatment process for the reduction of H₂S level in biogas by applying the combined technology of SRB dominant reactor and auto-pressurized reactor
  • High-purity biogas production using auto-pressurized anaerobic bioreactor
    • Development of technology for the control of CH4 content (60∼80%) in biogas
    • Long-term operation of auto-pressurized bioreactor (>150 days)
  • Promotion of direct interspecies electron transfer (DIET) in the anaerobic bioreactor for high biogas production rate
    • Development of macro-structured carbon-based materials
    • High rate biogas production by DIET (30% higher than the conventional process)
  • High-speed/high-purity of biogas production using a two-stage anaerobic digester
    • Establishment of facility design factors through operation of anaerobic digestion facilities for food waste with the capacity of 50kg/d
    • Design package of anaerobic processes for the high-speed/high-purity of biogas produciton at 100ton/d treatment scale
  • Optimization and verification of new material based H₂S separation process
  • Development of pilot-scale pretreatment process for the production of ultra-clean biogas
    • H₂S removal by absorption method (H₂S > 1 ppmv)
    • H₂S removal by absorption and adsorption methods (H₂S > 100 ppbv)
  • Development of new FT catalysts for selective synthesis of liquid fuel
    • Bifunctional FT catalyst with a combination of metal and acid catalysts for the production of Non-ASF hydrocarbon
    • Enhancing the liquid fuel production yield by metal promotion and the control of acid distribution/strength/amount in zeolite catalyst
    • Identification of reaction mechanism for tuning hydrocarbon selectivity
  • Design of the modular 3D structured FT catalyst for micro reaction system
    • Manufacturing a prototyped 3D FT catalyst with a consideration of mass/heat transfer
    • Loading/unloading test of the produced prototype catalyst
    • Performing CFD simulation for the optimal design of catalyst and process
  • Design and construction of a bench-scale integrated plant for the liquid fuels from organic wastes
    • Development of the modular reaction system for FTS
    • Construction of a bench-scale plant composed of biogas production (anaerobic digestion), reforming, and FTS

Future utilization and vision

  • Expansion of biogas utilization
  • Acquisition of carbon credit by generating biogas and reducing direct CO₂ emission
  • Development of decentralized renewable energy production system and creation of more benefits from clean liquid fuel production
  • Strengthening competitiveness of domestic industries associated with engineering, petrochemical, and material through securing integrated process technology for practical application

Sub research & Commissioned research projects

  • Sub 1 Development of a novel technology for the transformation of organic solid wastes to high quality biogas (Prof. Seoktae Kang, KAIST)
  • Sub 2 Development of ultra clean pretreatment key technology of organic waste-derived gas (Dr. Ilhyun Baek, KIER)
  • Sub 3 Catalyst design for the selective production of liquid hydrocarbon in Fischer-Tropsch synthesis from bio-gas with organic waste (Dr. Geun Jae Kwak, KRICT)

Representative figure

Research Scheme & Goal