Analysis of Factors Influencing Energy Consumption of HPPO Plant
The performance of TS-1(imported)and HTS(domestic)catalysts in different scale hydrogen peroxide propylene oxide(HPPO)plants was compared under different process parameters such as reaction temperature,reaction pressure,propylene mass space velocity,methanol/hydrogen peroxide mass ratio,propylene/hydrogen peroxide mass ratio,pH,etc.The performance of HTS catalyst is at the international leading level,the material consumption of hydrogen per-oxide and propylene is also relatively low.Within the reaction temperature range of 25-90 ℃ and reaction pressure range of 0.2-3.4 MPa,the comprehensive energy consumption of the HPPO plant first increases and then decreases,reaching the lowest value before continuing to increase.At the optimal reaction temperature of 58-67 ℃ and the optimal reaction pres-sure of 1.5-2.4 MPa,the comprehensive energy consumption of HPPO plant is relatively low.Within the non optimal reac-tion temperature and reaction pressure range,if other technologies make progress or breakthroughs,the energy consump-tion of the HPPO plant can be further significantly reduced.
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