Abstract
Study of activated carbon (AC) activator modified type, bore temperature, the ratio of the response activity. Optimized modified conditions: activator of CuCl2, a temperature of 800 °C, the AC activator ratio of 1:1. AC carrier prepared by reaming modified copper catalyst activity than the non-reaming significantly increased activity in the evaluation of typical conditions, the methanol conversion rate of 34.6%, DMC selectivity was 96.4%, DMC space-time yield was 221.1g / (kgcat • h). CuCl2 activation of AC in the pore distribution of modified ratio of 98%, mainly between the 2 ~ 3nm. Pore structure of the catalyst carrier has a significant effect on the activity, a larger proportion of the pore size distribution and pore size of about 2.5 nm in the AC carrier is conducive to the dispersion of active components and oxidative carbonylation catalytic activity increased.
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