The cost to produce trimethylene glycol by hydroformylation of ethylene epoxide and syngas (CO/H 2) is 22.4 USD/kg less than that by hydration of acrolein and hydrogenation of the intermediates.

• 以环氧乙烷与合成气（CO/H2）进行氢甲酰化反应制取1，3－丙二醇的生产成本比由丙烯醛水合和中间产物加氢制取1，3－丙二醇的生产成本低22.；4美分/kg。