PEMANFAATAN KONDENSAT DARI PRODUKSI CNG BANGKANAI SEBAGAI BAHAN
BAKAR GENERATOR SET MESIN GASOLINE
CNG 5.2 MMSCFD PLANT BANGKANAI
Haitami1, Christiono2
1.2 Program Studi Pendidikan Profesi Insinyur Institut Teknologi PLN,
Jl. Lebak Bulus Tengah No.5 2, RT.10/RW.4, Cilandak Barat, Kec. Cilandak, Kota Jakarta Selatan, Daerah
Khusus Ibukota Jakarta 12430.
Abstract
Condensate is a liquid hydrocarbon by-product from natural gas processing at CNG Plant Bangkanai
that supports the 155 MW Bangkanai Gas Engine Power Plant (PLTMG). With daily production
averaging 150-200 liters continuously accumulating and limited storage capacity of 160,000 liters. This
study aims to evaluate the utilization of condensate as an alternative fuel for generator sets as a solution
to prevent overflow while generating useful energy. The methodology purification treatment to improve
combustion quality, and operational testing on modified gasoline generator sets. Laboratory results
show condensate has a high heating value of 45.4079 MJ/kg but contains impurities including sulfur
(68.34 ppm wt) and mercury (5.0 μg/kg) that require treatment. Purification methods applied include
settling/filtration for particulate removal and carburetor optimization for improved air-fuel ratio.
Operational testing on a 7.5 kW generator set for 11 hours demonstrated stable performance with fuel
consumption averaging 3.48 L/hour, combustion efficiency of 76%, and NOx emissions of 0 ppm.
Economic analysis indicates that utilizing condensate at the current consumption rate effectively offsets
daily production (83.52 L/day consumption vs 150-200 L/day production), preventing overflow while
the existing 130,000-liter stock can provide electricity for approximately 1,556 days (4.26 years). This
utilization offers a sustainable solution for condensate management, preventing environmental risks
from overflow, generating alternative energy at CNG Plant Bangkanai.
Keywords: Condensate, Overflow Prevention, Purification, Alternative Fuel, Generator Set, CNG
Plant Bangkanai