Studies for Synthesis of Isobutanol from Carbon Monoxide and Hydrogen(IV)

Abstract

Balance in the second and third reports, me understood that Zfi-Cr-Mo-K2CO3 Catalysre was most suitable, me investigated in this report the effects of reaction temperature, pressure, space velocity and composition of raw gas.
As the results, we found the facts as follows's,
1) Asuitable range of reaction temperature is 400-450°C and, with rise of reaction temperature, gas Consumption ratio (CO/H2) and formation CO2/CH4 and CnHm increase gradually.
2) Reaction pressure don't give notable effects on contained balance of isobutanol in liquid of formation but latter increase with pressure.
Under 200kg/cm2, a increasing tendency of formation of water is observed.
3) Only for contained volume of isobutanol in liquie of formation, a suitable space velocity is 6, 000.But, from a point of view of formed isobutanol quantity (Space Time Yield), a sutable reaction temperature and space velocity are respectively 450°C and 15, 000.
4) Contained volume of isobutanol in liquid of formation (A) is good at about CO/H2=1/1 in gas consumption ratio and in experiments of use of raw gas of various ratio (CO/H2), when composition of raw gas is about CO/H2=1/1, A is much but methanol and water are formed very little.Little water formation enlarge activities of this catalyser.But the richer CO Content in raw gas is, the more formation of CH4, CO2, and CnHm is.