15 February 2013 03:09 [Source: ICIS news]
SINGAPORE (ICIS)--South Korea’s Yeochun NCC (YNCC) may shut down its 240,000 tonne/year butadiene (BD) extraction unit soon because of a contamination or fouling problem, a company source said on Friday.
“We may bring forward the turnaround schedule, but the date is not confirmed yet,” the source said.
The BD unit at YNCC’s 850,000 tonne/year cracker in Yeosu was originally scheduled to shut in May for maintenance.
BD is usually made via an extraction and purification process from crude C4 stream, but polymerisation has started to take place at the YNCC unit, requiring that it be shut and overhauled, the source said.
The unit developed the problem on 8 February and has been running at a reduced rate of 80-90% of capacity since then, the source said.
YNCC has three crackers with total capacity of 1.9 m ethylene/year, but only its No 1 cracker has a BD extraction unit.
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