Title:
PROCESS FOR SYNTHESIS OF ACROLEIN
Document Type and Number:
WIPO Patent Application WO/2011/099112
Kind Code:
A1
Abstract:
Provided is a technique for a process for the synthesis of acrolein by reacting glycerol with supercritical water and an acid. In a case where a reaction fluid having a high glycerol concentration is employed to improve the energy efficiency, the technique makes it possible to protect pipes and devices from clogging and wear, which are caused by the generation of by-products, and thus enables the synthesis to proceed stably with high yield. In an embodiment of the technique, the reaction fluid is adjusted to a glycerol concentration of 30wt% or less. Further, the embodiment comprises: cooling the reaction fluid to a temperature that can stop the reaction and that can keep the tar contained in the reaction fluid at a sufficiently low viscosity, namely, a temperature of 100 to 300°C; separating and removing carbon particles from the reaction fluid thus cooled; cooling the resulting reaction fluid to a temperature which is not higher than the boiling point of water and at which the tar contained in the reaction fluid does not stick to devices; and then evacuating the resulting system.
Inventors:
KONDO TAKEYUKI (JP)
ITO HIROYUKI (JP)
SASE YASUNARI (JP)
MATSUO TOSHIAKI (JP)
OKA KENICHIRO (JP)
KAMIKAWA MASAYUKI (JP)
TANTO MASASHI (JP)
ITO HIROYUKI (JP)
SASE YASUNARI (JP)
MATSUO TOSHIAKI (JP)
OKA KENICHIRO (JP)
KAMIKAWA MASAYUKI (JP)
TANTO MASASHI (JP)
Application Number:
PCT/JP2010/051846
Publication Date:
August 18, 2011
Filing Date:
February 09, 2010
Export Citation:
Assignee:
HITACHI PLANT TECHNOLOGIES LTD (JP)
KONDO TAKEYUKI (JP)
ITO HIROYUKI (JP)
SASE YASUNARI (JP)
MATSUO TOSHIAKI (JP)
OKA KENICHIRO (JP)
KAMIKAWA MASAYUKI (JP)
TANTO MASASHI (JP)
KONDO TAKEYUKI (JP)
ITO HIROYUKI (JP)
SASE YASUNARI (JP)
MATSUO TOSHIAKI (JP)
OKA KENICHIRO (JP)
KAMIKAWA MASAYUKI (JP)
TANTO MASASHI (JP)
International Classes:
C07C45/52; B01J3/00; C07C45/81; C07C47/22; C07C61/00
Foreign References:
| JP2007137785A | 2007-06-07 | |||
| JP2008088149A | 2008-04-17 | |||
| JP2008546660A | 2008-12-25 | |||
| JP2009132663A | 2009-06-18 | |||
| JP2008088149A | 2008-04-17 |
Other References:
ANTAL, MICHAEL JERRY, JR. ET AL.: "Heterolysis and homolysis in supercritical water", PREPRINTS OF PAPERS - AMERICAN CHEMICAL SOCIETY, DIVISION OF FUEL CHEMISTRY, vol. 30, no. 3, 1985, pages 77 - 86, XP055095762
RAMAYYA, SUNDARESH ET AL.: "Acid-catalyzed dehydration of alcohols in supercritical water", FUEL, vol. 66, no. 10, 1987, pages 1364 - 1371, XP023603137
See also references of EP 2535322A4
"Production, applications and economic efficiency of 1,3-PDO and PTT", August 2000, CMC PUBLISHING CO., LTD.
"Acrolein synthesis from glycerol in hot-compressed water.", BIORESOURCE TECHNOLOGY, vol. 98, 2007, pages 1285 - 1290
"Enhancement of reaction yield in synthesis of acrolein from high concentration glycerol using supercritical water", 74TH ANNUAL MEETING (2009) THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN J108
RAMAYYA, SUNDARESH ET AL.: "Acid-catalyzed dehydration of alcohols in supercritical water", FUEL, vol. 66, no. 10, 1987, pages 1364 - 1371, XP023603137
See also references of EP 2535322A4
"Production, applications and economic efficiency of 1,3-PDO and PTT", August 2000, CMC PUBLISHING CO., LTD.
"Acrolein synthesis from glycerol in hot-compressed water.", BIORESOURCE TECHNOLOGY, vol. 98, 2007, pages 1285 - 1290
"Enhancement of reaction yield in synthesis of acrolein from high concentration glycerol using supercritical water", 74TH ANNUAL MEETING (2009) THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN J108
Attorney, Agent or Firm:
HIRAKI YUSUKE (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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Claims:
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