CO2 Removal Design at PT Pertamina EP Asset 3 with Zeolite Contacting Tower
Erdila Indriani-Pradini Rahalintar-Simon Sinaga-Dwi Hardi P-Purnomosidi

PEM Akamigas-PEM Akamigas-PEM Akamigas-PT. Pertamina EP Asset 3-PEM Akamigas

Abstract

Impurities of carbon dioxide become an obstacle to gas production activities because it can cause damage (corrosiveness) to production equipment and reduce the calorific value of gas. One of the methods commonly used in handling CO2 is the use of an amine unit. PT Pertamina EP Asset 3, precisely at SP Bangoduwa Cirebon, has a gas well with very large carbon dioxide impurities and has problems when it is planned to build an amine unit due to low pressure and other economic reasons.

Therefore, research studies as another alternative method of handling carbon dioxide produced are an interesting topic to be raised. The method used in this research is to use a filtering mechanism with a laboratory-scale column containing zeolite and activated carbon, which is expected to reduce the carbon dioxide content effectively and economically.

In this study, carbon dioxide filtering was carried out with three prototype models. The first model is a filter form made with stratified (as many as 4 levels), with each level given 250 gr of zeolite. The second model has a long filter shape, with a zeolite capacity that fills each stick of 250 gr. Meanwhile, the third model is a filter form that is made in stages (as many as 4 levels), with each level given as much as 250 grams of activated carbon and it is hoped that it can reduce the CO2 content in natural gas in the Bangoduwa SPC Cirebon PT PERTAMINA EP Asset 3.

In testing using CO2 Monitoring, the results of reducing CO2 levels are 0.9-1% for the first prototype model and 0.8 - 0.9% for the second model by testing the gas sample. The third model increases CO2 levels by 1% from the same gas sample passed for each prototype model. Potention of zeolit to be applied as CO2 removal in sour gas is revealed however need much progress to enhanced the removal tower in order to get higher CO2 stripping precentage.

Keywords: CO2 removal , Zeolite contactor, Sour gas, Natural gas

Topic: Engineering