The relationships of particle axial distribution in the bubble column slurry reactor for the synthesis of methanol with various parameters

such as superficial gas velocity

reactor diameter and catalyst concentration

were discussed by means of a mathematical model verified by model test.The influence of the main construction parameters of the reactor and the operating parameters of industrial demonstration unit of 10000t·a -1 were determined.The modeling results obtained under the conditions of two industrial synthesis gases showed that the influence of pressure in three-phase methanol synthesis process was most obvious

and slurry bed height was also a more important adjustable parameter.Under the operating condition in this paper

as methanol yield reaches 10000 tons per year

outlet methanol mole fractions is in the range from 0.07 to 0.10 and CO conversion is in the range from 40% to 50% within wider ranges of pressure and temperature with recycle and once-through of synthesis gases.