April 2007

Special Report: Petrochemical Developments

Optimize terephthaldehyde reactor operations

Korea's largest chemical company uses innovative modeling techniques to design high-performance reactors

Research teams applied a hybrid modeling approach when simulating the numerous chemical reactions to manufacture terephthaldehyde (TPAL). This case history explores how computational fluid dynamic (CFD) and advanced process modeling (APM) methods are used in combination to optimize the multitubular fixed-bed catalytic reactor at the heart of the TPAL process. Background. LG Chem, Ltd., Korea's largest chemical company, needed to design two high-performance multitubular reactors for two different petrochemical processes. At the heart of the processes was a multitubular fixed-bed catalytic reactor. This unit is complex and involves many different phenomena that must be considered simultaneou

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