Tae Hyun Kim
Hanyang University 재료화학공학과 · 工学
Tae Hyun Kim 교수의 연구실은 농업 잔여물과 식물성 생물질을 활용한 청정 에너지 기술 개발에 중점을 두고 있습니다. 주로 옥수수 스토버와 같은 농업 부산물을 대상으로 암모니아 기반 생물질 전처리 기술을 개발하여 에탄올 생산 효율을 극대화하고, 동시에 효소 분해 및 동시 발효 과정에서의 효율성 향상을 연구하고 있습니다. 또한, 생분해성 고분자 및 자원 순환 기반의 지속 가능한 기술 개발에도 기여하고 있습니다.
Figures are computed from collected data and may differ slightly.
Soaking in aqueous ammonia (SAA) was investigated as a pretreatment method for corn stover. In this method, the feedstock was soaked in aqueous ammonia over an extended period (10-60 d) at room temperature. It was done without agitation at atmospheric pressure. SAA treatment removed 55-74% of the lignin, but retained nearly 100% of the glucan and 85% of the xylan. The xylan remaining in the corn stover after SAA treatment was hydrolyzed along with the glucan by xylanase present in the Spezyme CP
The methods of pretreatment of lignocellulosic biomass using aqueous ammonia are described. The main effect of ammonia treatment of biomass is delignification without significantly affecting the carbohydrate contents. It is a very effective pretreatment method especially for substrates that have low lignin contents such as agricultural residues and herbaceous feedstock. The ammonia-based pretreatment is well suited for simultaneous saccharification and co-fermentation (SSCF) because the treated
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