Heehyang Kim

Decision making with the deterministic judgment of urea production with various hydrogen sources: technical, economic, and environmental aspects† Heehyang Kim,a Aejin Leea and Hankwon Lim *abc Abstract Demand for urea is gradually increasing, and is also focused on producing economical urea production; accordingly, urea production is concentrated on existing coal-fired power stations.

What is the best scenario to utilize landfill gas?: Quantitative and qualitative approaches for technical, economic, and environmental feasibility Manhee Byun, Heehyang Kim, Aejin Lee, Seunghyun Cheon, Jiwon Gu and Hankwon Lim Abstract To overcome the global increasing trend of environmentally harmful waste of landfill gas (LFG) generation derived from a huge amount of municipal solid waste, various research on utilization of LFG have been actively conducted.

What is the best green propylene production pathway?: technical, economic, and environmental assessment† Heehyang Kim,‡a Boreum Lee,‡a Dongjun Lim,a Changgwon Choea and Hankwon Lim *ab Author affiliations * Corresponding authors a School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea E-mail: hklim@unist.ac.kr Tel: +82 52 217 2935 b Department of Energy Engineering, Ulsan National...