Case Study Control Column Performance with a Plant Digital Twin Using Aspen HYSYS ®40% increase in column capacity CHALLENGE The refinery’s naphtha splitter column was failing to meet the required product specification BENEFITS Troubleshot and revamped the naphtha splitter column unit resulting in an expected • 40% increase in column capacity • 15% reduction in utility consumption; a savings of ~$500,000 USD per year • Improvement in on-spec products • Full recovery of costs in less than one year SOLUTION The problem was diagnosed and fixed using a plant digital twin of the column built using the column analysis capability in Aspen HYSYS ® and its integration with Aspen Exchanger Design & Rating“The column analysis capability in Aspen HYSYS showed us exactly where the problem wa

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