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World’s First Petrochemical Byproduct Recycling Technology Developed in Korea Contents
title World’s First Petrochemical Byproduct Recycling Technology Developed in Korea
attachment date 2008-06-12 count 13261
World’s First Petrochemical Byproduct Recycling Technology Developed in Korea
2008/06/12
- With new technology, SK Energy maximizes value of petrochemical C4 olefins
- Expected to generate additional profit of KRW 100 billion annually as per one million tons of naphtha
- Expected to generate royalty earnings of KRW 20 billion won when used for naphtha analysis processing
- Saves energy cost by 20% and investments by 30% compared to existing facilities


SK Energy and the Korea Institute of Energy Research has developed new process technology which produces high-value added petrochemical materials such as butadiene and butane-1 using C2 by-products generated from the naphtha analysis process during production of ethylene and propylene

The new technology comprises of two processes, which are “acetylene transformation process” and “olefin/paraffin absorption & separation process.”

The acetylene transformation process prevents acetylene, which is residue of C4 by products, from being accumulated during the process, as well as simplifies the complicated follow-up process to save energy by up to about 20 percent.

The olefin/paraffin absorption & separation process helps significantly reduces the scale of back-end process which produces high value-added derivatives by separating C4 compounds into olefins and paraffin before the start of processing, thereby, saving investments and energy costs.

The company plans to complete the pilot test on the acetylene transformation process, and launch production in its Ulsan Complex in the second half of 2009. It expects to complete the process design package for the olefin/paraffin absorption & separation process before the end of this year to launch a new plant in the first half of 2010, increasing production of butane-1 by two folds.

Using the olefin/paraffin absorption & separation process, the company can increase production capacity of butane-1 by partially upgrading the existing petrochemical process facilities, and improve LPG without adding hydrogen unlike other processes. This process also produces high-purity butane-2 stream which is used as materials for butadiene production. It can also be used for the ethylene recovery process in the Fluidized Catalytic Cracking (FCC).

By adopting new technologies presently developed involving butane-2 and octaine-1 in combination with the two new technologies, the company is expected to generate additional profit of 100 billion won or earn as much as 20 billion won in royalties as per one million tons of naphtha on a yearly basis. It will also be able to save energy consumption by 20 percent and investments in a new facility by 30 percent.
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