Heating Methods in Gas Plant: Evaluation and Optimization

Noaman, Abdelaziz Ahmed

doi:10.21608/ejchem.2025.366531.11418

Heating Methods in Gas Plant: Evaluation and Optimization

Document Type : Original Article

Author

Abdelaziz Ahmed Noaman

chemical engineering department, faculty of engineering, Minia university

10.21608/ejchem.2025.366531.11418

Abstract

There are a number of issues to consider when choosing the best source of energy for the heating system in the gas project. The three biggest are the application, environmental impact, and cost of operation.
This paper compares and evaluates the available heating methods required for the amine regenerator reboiler at 130 oC, glycol (TEG) regenerator reboiler at 204 oC, start-up heater at 60 oC and condensate stabilization column reboiler at 180 oC in the gas project. These available heating methods are indirect heating, direct heating, waste heat recovery unit (WHRU) and electric heating.
AspenTech process modelling “HYSYS” v14 software was provided to simulate the all processing facilities in the while PROMAX software v6 was provided to simulate the amine (MDEA) and TEG systems in the gas project.
Technical and economical comparisons were conducted between those available heating methods to select the best method required in the gas project. The comparisons were conducted also based on the subtilty, availability, environmental impact and limitations for each method. It has been found that the hot oil with WHRU is the best solution because it’s safer, the OPEX is much lower and this This would make the WHRU more cost effective over a few years of operation. Also, hot oil is the better than hot water as a heating medium.

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