关键词:

撞击流反应器, 甲醇合成, 喷嘴, 雾化

Abstract:

When it was used for gas-liquid-solid three-phase methanol synthesis, an impinging stream reactor showed good heat and mass transfer performance.In the impinging stream reactor, the catalyst slurry was atomized into droplets of several micrometers in size which provided a huge interface between gas and slurry phase.The effects of temperature, pressure, gas flow rate, slurry recirculation flow rate and number of nozzles on methanol productivity were investigated.The results showed that a pressure increase from 3.8 MPa to 5 MPa doubled methanol productivity,and at a gas flow rate up to 22.4 L·min^-1, methanol productivity kept constant.The increases in slurry recirculation flow rate and in the number of multi-nozzle also resulted in the increase of methanol productivity.When space velocity was low, the impinging stream reactor had the same methanol productivity as compared with other reactors such as fixed bed reactor, agitated reactor and slurry bubble column.However, at a high space velocity the impinging stream reactor had higher methanol productivity than those of other reactors.

Key words:

撞击流反应器, 甲醇合成, 喷嘴, 雾化