HYDROTHERMAL LIQUEFACTION OF ENTEROMORPHA PROLIFERA FOR BIO-CRUDE PRODUCTION: AN EXPERIMENTAL STUDY ON AQUEOUS PHASE RECIRCULATION

被引：4
|
作者：
Zhang, J. [1 ,2 ]
Qian, C. [1 ,2 ]
Yan, K. [1 ,2 ]
Song, J. [1 ,2 ]
Jiang, B. [1 ,2 ]
机构：
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing, Peoples R China
[2] China Univ Petr, Beijing Key Lab Proc Fluid Filtrat & Separat, Beijing, Peoples R China
来源：
TRANSACTIONS OF THE ASABE | 2019年 / 62卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Alkali metal; Aqueous phase recirculation; Hydrothermal liquefaction; CATALYTIC LIQUEFACTION; OIL; MICROALGAE; LIQUID; WASTE; BIOCRUDE; QUALITY; YIELDS;
D O I：
10.13031/trans.13418
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
In this study, catalytic hydrothermal liquefaction (HTL) of Enteromorpha prolifera with aqueous phase recirculation (APR) was tested in order to improve bio-crude yield and reduce catalyst dosage. Bio-crude yields of 17.0% and 18.5% were obtained at 300 degrees C in 30 min of non-catalytic HTL and catalytic HTL with 5.0% NaOH, respectively. Determination of alkali metals showed that 76.7% of the Na was recovered in the aqueous phase, indicating that APR provided the possibility for catalyst recycling. Bio-crude yields were increased to 20.0% and 22.7% when performing APR for noncatalytic and catalytic HTL, respectively. To investigate the effects of recycled catalyst and volatile aqueous products (VAPs), a different APR experiment with VAPs removal for catalytic HTL was conducted, and a bio-crude yield of 17.8% was achieved. It was concluded that bio-crude yield increased with APR, mainly due to the effects of VAPs.
引用
收藏
页码：1113 / 1119
页数：7
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