The operation pressure of debutanizer was unstable since a light hydrocarbon recovery unit had been put into use.
某轻烃回收装置自投用以来，脱丁烷塔操作压力一直不稳定。
2
By applying multivariable model predictive control (MPC) technology, the control performance of the gasoline debutanizer of fluid catalytic cracking unit can be improved.