首页|Dealuminated Hβ zeolite for selective conversion of fructose to furfural and formic acid

Dealuminated Hβ zeolite for selective conversion of fructose to furfural and formic acid

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The fructose-to-furfural transformation is facing major challenges in the selectivity and high efficiency.Herein,we have developed a simple and effective approach for the selective conversion of fructose to furfural using Hβ zeolite modified by organic acids for dealuminization to regulate its textural and acidic properties.It was found that citric acid-dealuminized Hβ zeolite possessed high specific surface areas,wide channels and high Brønsted acid amount,which facilitated the selective conversion of fructose to furfural with a maximum yield of 76.2％at 433 K for 1 h in the y-butyrolactone(GBL)-H2O system,as well as the concomitant formation of 83.0％formic acid.The 13C-isotope labelling experiments and the mechanism revealed that the selective cleavage of Cl-C2 or C5-C6 bond on fructose was firstly occurred to form pentose or C5 intermediate by weak Brønsted acid,which was then dehydrated to furfural by strong Brønsted acid.Also this dealuminized Hβ catalyst showed the great recycling performance and was active for the conversion of glucose and mannose.

FructoseDealuminated-Hβ zeoliteSelective conversionFurfural

Rui Li、Qixuan Lin、Junli Ren、Xiaobao Yang、Yingxiong Wang、Lingzhao Kong

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State Key Laboratory of Pulp and Paper Engineering,School of Light Industry and Engineering,South China University of Technology,Guangzhou,510640,China

Institute of Coal Chemistry,Chinese Academy of Sciences,27 South Taoyuan Road,Taiyuan,030001,China

CAS Key Laboratory of Low-Carbon Conversion Science and Engineering,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,201210,China

School of Environmental Science and Technology Suzhou University of Science and Technology Suzhou,Jiangsu,215009,China

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Program for National Natural Science Foundation of ChinaProgram for National Natural Science Foundation of ChinaProgram for National Natural Science Foundation of ChinaNational Key Research and Development Program of China

2217813521978104222784192021YFC2101601

2024

10.1016/j.gee.2022.06.003

绿色能源与环境(英文)

绿色能源与环境(英文)

CSTPCD
ISSN：
年,卷(期)：2024.9(2)
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