Enhancing energy efficiency of thermal oil system in gas processing plant

Indonesia is still considered as a producer of natural gas in the world. Natural gas is an important commodity used as a fuel to produce power, as well as a raw material to produce derived products such as fertilizer, chemical stocks, and other products. The role of the gas processing plant is very...

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Bibliographic Details
Main Authors: Cahyadi, Hidayat, Taopik, Ahda, Yusuf, Sutardi, Tata
Format: Conference Proceeding
Language:English
Subjects:
Energy consumption
Energy efficiency
Energy utilization
Fuel consumption
Heat
Heat generation
Heat recovery systems
Heating
Natural gas
Raw materials
Thermodynamic efficiency
Waste heat recovery
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Summary:Indonesia is still considered as a producer of natural gas in the world. Natural gas is an important commodity used as a fuel to produce power, as well as a raw material to produce derived products such as fertilizer, chemical stocks, and other products. The role of the gas processing plant is very important to form end products of a required gas. One of significant energy use in gas processing plant is thermal oil system, due to considerable heating and cooling requirements in amine treating unit. Energy consumption of fired heater in a gas processing plant depends on the raw natural gas condition, however in some cases it takes 11-15% of total energy consumption. The aim of energy efficiency in thermal oil system is the reduction of energy losses, and the increase of the energy transferred to the load. This paper will discuss about the performance and efficiency improvement opportunities in thermal oil system, which can be classified heat generation, heat containment, waste heat recovery and enabling technology. Reducing excess air in various thermal oil heaters have improved the thermal efficiency with the range from 0.65 to 1.8%. Further controlling the hot oil flow has increased the thermal efficiency of the heater up to 3.1%. High energy consumption process in amine treating unit is also take into consideration for enhancing energy efficiency in thermal oil system. Improving energy intensity in amine treating unit means decreasing the heat load to the thermal oil heater. Meanwhile, the heat recovery and air preheating methods lead to a significant reduction in fuel consumption up to 7.4%.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0205761