Abstract: Data related with energy consumption, gasoline quality and product distributions of 33 MIP units were collected and analyzed in this paper. Compared with FCC units, the energy consumption of MIP units decreased by 330~425 MJ/t, in which 215.47~ 336.14 MJ/t was directly attributed to the heat reductions of feed heating and reaction heat. The contents of olefin, sulfur and benzene in MIP gasoline were decreased significantly, thus pollutants emission was reduced. Up to now, the total processing capacity of MIP series units reached more than 70.00 Mt/a, an increment of 1.092 Mt/a liquid products and a diminution of 0.354 8 Mt/a coke are obtained as compared with FCC process, just as reducing 1.30 Mt CO2 emission annually.

Key words: MIP, gasoline, product distribution, energy saving and emission reduction