Methanol wax removal film separator and method for methanol wax removal

The invention discloses a methanol wax removal film separator and a method for methanol wax removal. A polar selective permeable film is mounted on the novel methanol wax removal film separator and prepared from polyacrylic acid and 1, 3-propanediol. The film is applied into the methanol wax removal film separator, polar small molecule substances such as methanol can selectively penetrate, productmethanol side-reaction product wax substances in methanol synthesis can be separated, methanol quality is improved, production energy consumption is reduced, and the problem of blocking of a pipelinecaused by wax precipitation is effectively prevented. A film preparation process is simple, selected materials are low in price, and the film has high selectivity, large flux and great development potential. 本发明公开种甲醇除蜡膜分离器及其用于甲醇除蜡的方法。新型甲醇除蜡膜分离器上安装种极性选择性渗透膜，所述极性选择性渗透膜使用聚丙烯酸和1,3-丙二醇制备。该膜应用到甲醇除蜡膜分离器内，可选择性透过甲醇等极性小分子物质，可分离甲醇合成中的产品甲醇和副反应产物石蜡物质，提高甲醇品质，降低生产能耗，并有效防止管线因石蜡析出堵塞管线问题。同时本发明的制膜工艺简单，选择材料价格低廉，具有较高的选择性和较大的通量，具有极大的发展潜力。