Title :
Increased utilization of bio-oil after extraction and separation of carboxylic acid
Author :
Xu, Yingmei ; Liu, Qian ; Zhang, Chunhua ; Zhang, Wei ; Zhang, Qiumin
Author_Institution :
Key Lab. of Biotechnol. & Bioresources Utilization, Dalian Nat. Univ., Dalian, China
Abstract :
The oxygen level, acidity and corrosivity of bio-oil were reduced by the extraction and separation of acetic and other carboxylic acids from bio-oil. The removal of carboxylic acid was verified by the increase in pH of the bio-oil from 2.52 to 5.47. The IR spectrum also shows that the carboxyl peak of bio-oil (1600 cm-1-1400cm-1) was much weaker after separation and upgrading. The aqueous phase separated from the bio-oil contains a large amount of carboxylic acid, which can be converted to calcium magnesium acetate (CMA), an environment-friendly deicer. The product´s structure was confirmed by infrared (IR) spectroscopy and X-Ray Diffraction (XRD). Overall, the extraction and separation of carboxylic acid from bio-oil improves its quality and increases the utilization value of bio-oil.
Keywords :
X-ray diffraction; biofuel; biotechnology; chemical engineering; infrared spectra; organic compounds; pH; separation; IR spectrum; X-ray diffraction; acetic acid extraction; acidity; aqueous phase; bio-oil utilization; calcium magnesium acetate; carboxylic acid extraction; carboxylic acid removal; corrosivity; environment friendly deicer; infrared spectroscopy; oxygen level; separation; Chemicals; Educational institutions; Methanol; bio-oil; calcium magnesium acetate (CMA); deicers; separation and upgrading;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930848
