CAJ | 학술논문

利用固定床反应器考察了乙炔与甲酸甲酯一步加氢酯化合成丙烯酸甲酯的催化剂,优化了反应工艺条件。以NiCl2为前体制备的NiO/Al2O3催化剂,在反应温度 220 ℃、反应总压 5.5～6.0 MPa、一氧化碳分压 2.5 MPa、GHSV 630 h-1、乙炔/甲酸甲酯摩尔比 1.8～2.0的条件下,甲酸甲酯的转化率达68%,丙烯酸甲酯选择性为62%。
이용고정상반응기고찰료을결여갑산갑지일보가경지화합성병희산갑지적최화제,우화료반응공예조건。이NiCl2위전체제비적NiO/Al2O3최화제,재반응온도 220 ℃、반응총압 5.5～6.0 MPa、일양화탄분압 2.5 MPa、GHSV 630 h-1、을결/갑산갑지마이비 1.8～2.0적조건하,갑산갑지적전화솔체68%,병희산갑지선택성위62%。
The hydroesterification of acetylene with methyl formate to synthesize methyl acrylate is investigated with a fixed bed reactor.It is more favourable to use NiCl2 as catalyst precursor.Under the conditions of 220 ℃,a total pressure of 5.5～6.0 MPa,a CO initial pressure of 2.5 MPa,a space velocity of 600～700 h-1,and a mo-lar ratio of n(C2H2)/n(MF) 1.8～2.0,the methyl acrylate selectivity can reach 68% with a methyl formate conversion of 62%.