摘要：【中文】在本发明的实施例的多元醇的脱色和除臭方法及系统中，制备包含通过分离工序获得的第一多元醇的混合液。通过对混合液进行蒸馏处理，以预先除去异色异味物质，产生预处理液。对预处理液进行吸附处理。通过蒸馏处理和吸附处理的组合，可以提高异色异味物质的除去率。 【EN】In the method and system for decoloring and deodorizing a polyol according to the embodiments of the present invention, a mixed solution including a first polyol obtained through a separation process is prepared. The mixed solution is subjected to a distillation treatment to remove the heterochromatic foreign substances in advance, thereby producing a pretreatment solution. And (4) carrying out adsorption treatment on the pretreatment liquid. The removal rate of the off-color and off-flavor substances can be improved by the combination of the distillation treatment and the adsorption treatment.