Performance Evaluation Study of Stripper in CO2 Removal Unit

Andika Anugrah; Muslikhin Hidayat; Wahyudi Budi Sediawan

doi:10.14710/reaktor.1.1.21-25

DOI: https://doi.org/10.14710/reaktor.1.1.21-25

Performance Evaluation Study of Stripper in CO2 Removal Unit

*Andika Anugrah - Chemical Engineering, Gadjah Mada University, Indonesia

Muslikhin Hidayat

- Chemical Engineering Department, Universitas Gadjah Mada, Yogyakarta, Indonesia

Wahyudi Budi Sediawan

- Chemical Engineering Department, Universitas Gadjah Mada, Yogyakarta, Indonesia

Received: 6 Jan 2023; Published: 6 Jun 2023.

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Abstract

An ammonia plant has a very important role in the fertilizer industry. This plant processes natural gas, steam, and air as raw materials into ammonia and carbon dioxide (CO₂) products. The ammonia and CO₂ products will become feed for the urea plant. One of the units in the ammonia plant is CO₂ removal. The CO₂ removal unit functions to separate CO₂ gas from syngas to be processed to the urea plant, so the performance of the CO₂ removal unit is very crucial for the plant. One of the pieces of equipment that supports the performance of the CO₂ removal unit is a stripper. This study aims to evaluate the performance of the stripper by arranging a mathematical model and solution for steady-state conditions. One of the stripping performance parameters is CO₂ lean loading. Completing mathematical equations using the Matlab program and obtaining profiles of the mole flow rate and temperature along the bed packing stripper. Variables that affect stripper performance include temperature and pH. When compared with operational plant data, the simulation results show an error of below five percent. The optimum operating conditions for the stripping process so that CO₂ lean loading is minimum:

a. Bottom stripper temperature = 120⁰C – 123⁰C,

b. pH inlet stripper = 7.9-8.1.

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Section: Research Article

Language : EN

In Volume 23 No.1 April 2023

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