Antonelli, Terry, Stout & Kraus, LLP.
Method and device for synthesizing acrolein
An object of the present invention is to provide an industrially applicable method for producing acrolein via treatment with supercritical water from glycerin obtained as a by-product during the process of biodiesel fuel production from waste animal/plant fat or oil with the use of an alkali catalyst.The present invention provides a method for producing acrolein, which comprises: a determination step of determining the hydrogen ion concentration in glycerin obtained as a by-product; an acid addition step of adding to the glycerin an acid at an amount calculated based on the results of the determination step so as to make the glycerin acidic; and a supercritical water treatment step of allowing supercritical water to act on the glycerin after the acid addition so as to produce acrolein from the glycerin.
Hitachi, Ltd.
B C Y B
B01J C07C Y02P B01J
inventional inventional additional inventional
Masashi Hiroyuki Takeyuki Toshiaki Yasunari
Tanto Ito Kondo Matsuo Sase