Process for preparation of ethylene glycol

The present invention relates to a process for the preparation of ethylene glycol comprising: a) converting a stream comprising ethylene oxide to a stream comprising ethylene carbonate in the presence of a catalyst and carbon dioxide in two or more reactors; and b) converting ethylene carbonate from the ethylene carbonate-comprising stream obtained in step a) into a stream comprising ethylene glycol and a stream comprising carbon dioxide in one or more reactors in the presence of a catalyst, wherein one or more inlet streams of the last one of the two or more reactors used in step a) are not heated; and wherein an outlet stream comprising ethylene carbonate from the last of the two or more reactors used in step a) is sent to the first of the one or more reactors in which step b) is performed, without recycling a portion of the outlet stream to the last reactor used in step a). 本发明涉及一种用于制备乙二醇的方法，所述方法包括：a)在两个或更多个反应器中在催化剂和二氧化碳的存在下将包含环氧乙烷的物流转化为包含碳酸亚乙酯的物流；和b)在一个或多个反应器中在催化剂的存在下将来自步骤a)中获得的所述包含碳酸亚乙酯的物流的碳酸亚乙酯转化为包含乙二醇的