Title:
酸／糖溶液から酸を回収するための方法
Document Type and Number:
Japanese Patent JP6646065
Kind Code:
B2
Abstract:
Acid hydrolysis of biomass is an important step for releasing the component sugars before converting them to fuels and/or biochemicals. During such a process, a significant amount of mineral acid, such as sulfuric acid, is used. In most cases, the residual acid is neutralized with lime before the sugar conversion step. By doing so, a waste calcium sulphate stream is generated and sent to disposal. The efficient separation of acid from the sugars would allow the recycle of the acid and make the entire process more economically viable. We found that a resin bed packed with an acid retardation resin can be used to achieve an efficient separation (i.e. 98.5% recovery of the acid) of the sulfuric acid from the sugars. The resin bed can be simply regenerated with water.
Inventors:
Gemmer, Nasur
Pareo Rogo, Michael
Mahmood, Talat
Pareo Rogo, Michael
Mahmood, Talat
Application Number:
JP2017555302A
Publication Date:
February 14, 2020
Filing Date:
April 20, 2016
Export Citation:
Assignee:
FP Innovations
International Classes:
C13K1/04; B01J41/05; B01J47/02; B01J49/57; C01B17/90; C13B20/14
Domestic Patent References:
| JP2001511418A | ||||
| JP2010501013A | ||||
| JP2005229822A | ||||
| JP62202806A | ||||
| JP3232500A |
Foreign References:
| US20070148750 | ||||
| US5434301 |
Attorney, Agent or Firm:
Asamura patent office