CATALYST FOR PRODUCTION OF SYNTHESIS GAS AND PRODUCTION OF SYNTHESIS GAS

摘要

PROBLEM TO BE SOLVED: To obtain a copper-contg. catalyst capable of producing synthesis gas at a low temp. in a high yield from a gaseous mixture contg. dimethyl ether and CO2 . SOLUTION: An aq. soln. prepd. by dissolving about 91g copper nitrate, about 73g zinc nitrate and about 368g aluminum nitrate in about 2l ion exchanged water and an aq. soln. prepd. by dissolving about 250g sodium carbonate in about 2l ion exchanged water are dropped in about 2hr into a stainless vessel contg. about 5l ion exchanged water kept at about 80 deg.C while maintaining about pH8.0±0.5 and they are aged by holding for about 1hr. A formed precipitate is separated by filtration and washed with ion exchanged water until nitrate ions become undetectable in the washing water. The resultant cake is dried at about 120 deg.C for about 24hr, fired at about 350 deg.C for about 5hr in air and classified through a 20- to 40-mesh screen to obtain the objective catalyst.