Prarancangan Pabrik Syngas dari Batu Bara dengan Metode Wet Gasification untuk Pembangkit Listrik dengan Kapasitas Produksi 250 MW
Muhammad Fauzi Awaludin, Ir. Ahmad Tawfiequrrahman Yuliansyah, S.T., M.T., D.Eng., IPM.
2025 | Skripsi | TEKNIK KIMIA
Synthetic gas or syngas is a gas mixture whose components are mostly composed of
CO and H2. Syngas is commonly used as a raw material in the chemical industry, such as in
the manufacture of ammonia, methane, and urea. In addition, syngas can be utilized as fuel
for power generation.
Syngas can be produced through a coal gasification process. In this plant, bituminous
coal is used with the wet gasification method carried out in an entrained flow gasifier reactor
at a pressure of 40 atm and a temperature of 1500 ?. The syngas production process for
power generation is divided into six unit stages, namely the raw material preparation unit,
oxygen preparation unit, gasification unit, particulate removal unit and COS hydrolysis,
desulfurization unit, and generating unit. The plant is designed with an electricity production
capacity of 250 MW operating for 330 days/year. The raw material requirements for the
production process are 50,587.40 kg/hour of coal, 11,111.15 kg/hour of water, and 39,926.38
kg/hour of O2 + N2. Syngas produced as much as kg / hour consists of a mixture of CO, H2,
CO2, H2O, and a little H2S gas. In addition, there are side products in the form of slag as
much as 6,927 kg/hour.
The plant is planned in Kaltim Industrial Estate (KIE), Bontang, East Kalimantan
with an area of 9 Ha and 274 employees. The material utility requirements for this plant
include seawater intake of 2,053,773.21 kg/hr, steam of kg/hr, air supply of 624,237.80 kg/hr,
and electricity of 9,853.33 kW.
This plant is classified as a high risk chemical industry that requires fixed capital of
$139,021,726.03 and working capital of $50,737,285.68. At 100% production capacity, the
ROI before tax is 44.07%, ROI after tax is 34.20%, POT after tax is 2.31 years, and POT
before tax is 1.88 years. In addition, the BEP value of 47.43%, SDP of 30.20%, and DCFRR
of 35.03% were obtained. Based on the economic analysis, the plant is economically
attractive and worthy of further study
Kata Kunci : Batu bara, bituminous, wet gasification, syngas, listrik