Analysis of Energy Efficiency by Using Gas Venting the Start-Up Process of PT Pupuk Iskandar Muda

Muhammad Hijrin, Siti Shara, - Agustria, Ahmad Ghufran, Giffari Almuzani, Didik Nurhadi, Suryadi Idris, - Fachrian, Aidil Azhar

Abstract


PT Pupuk Iskandar Muda, as a manufacturing industry that produces fertilizers and ammonia, requires much energy at the start of the plant. Hence, optimizing energy consumption and increasing energy efficiency is necessary to reduce greenhouse gas (GHG) emissions. Start-up, as one of the vital activities carried out in the industry, significantly affects high energy consumption, especially when the start-up frequency is high, resulting in significant exhaust gases. This study analyzes energy efficiency in plant start-up activities using a gas venting outlet, finally desulfurized as a Low-Temperature Shift Converter heating medium. Determination of targets for problems related to energy efficiency using the Quality, Cost, Delivery, Healthy, Safety, and Environment (QCDHSE) method. At the same time, the Nominal Group Technique (NGT) method is used to identify problems in energy efficiency in the ammonia plant. Using gas venting reduces the factory's start-up time to three hours, which reduces the ammonia plant's start-up energy consumption from 48,832 MMBtu to 45,565 MMBtu, resulting in an energy efficiency of 277 MMBtu/hour. With 6.7% and 20% improvements in energy efficiency and reduced fuel consumption. PT Pupuk Iskandar Muda has saved IDR 343,035,000 in ammonia plant start-up costs. Energy efficiency is a measure taken to avert catastrophic climate change. Increasing energy efficiency is consistent with reducing carbon emissions, which can decrease environmental air pollution.

Keywords


Energy efficiency; Emission reduction; Gas venting; Ammonia Plant; Start-Up

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DOI: http://dx.doi.org/10.18517/ijaseit.13.5.18949

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