Multi-Criteria Analysis for the Use of Carbon Dioxide Generated In the Gas Plant

CO۲ plays the most important role in pollution due to greenhouse gases, which causes global warming and climate change. Unfortunately, CO۲ emission has increased significantly in recent decades. So, it is crucial to capture CO۲. On the other hand, CO۲ can be utilized for commercial products. There is plenty of CO۲ utilization such as enhanced oil recovery (EOR), producing methanol, salicylic acid, urea, and so on. This paper tries to consider the applications of CO۲ emitted from ethane treatment units of the Asalouyeh gas processing plant. But selecting the best application is a complex issue. A multi-criteria decision-making method, fuzzy TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution), considering economic, technical, and environmental aspects have been used to find the best application for CO۲ utilization. Considering ۱۰ criteria and comparing options with sensitivity analysis in ۳۲ different modes, the results show that methanol production is often the best option and salicylic acid production is the worst option. It should be noted that the increase in the harvest with a very close distance in the majority of cases is the second priority.

Keywords:

Ethylene Epoxidation , Ethylene Oxide , Rhenium , Silver , Strontium Titanate