Surface modification of ZSM-5 zeolite: effect of cation on selective conversion of biomass-derived oil

被引：0
作者：
Widayatno, W. B. [1 ]
机构：
[1] Indonesian Inst Sci, Res Ctr Phys, PUSPIPTEK Serpong, Bld 440-442, Tangerang Selatan 15314, Indonesia
来源：
2ND INTERNATIONAL SYMPOSIUM ON FRONTIER OF APPLIED PHYSICS (ISFAP 2016) | 2017年 / 817卷
关键词：
CATALYTIC MICROWAVE PYROLYSIS; BIO-OIL; ACTIVATED CARBON; HZSM-5; ZEOLITE; DESILICATION; CHEMICALS; FUELS; NAOH; FEEDSTOCKS; MECHANISM;
D O I：
10.1088/1742-6596/817/1/012018
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This paper reports the surface modification of high silica ZSM-5 zeolite, particularly emphasizing the effect of cation type on selective conversion of biomass-derived oil. XRD spectra of the NaOH-treated HZSM-5 showed notable crystallinity decrease at specific crystal plane orientation. The N-2-physisorption tests confirmed mesoporosity evolution as NaOH concentration was increased. NH3-desorption tests revealed a significant change on surface acidity which involved realumination and cation replacement processes. The utilization of untreated HZSM-5 as well as hierarchical NaZSM-5 for catalytic conversion of bio-oil showed the effect of cation type and mesoporosity on chemicals distribution. The untreated HZSM-5 showed high selectivity to aromatics, which degraded gradually due to deactivation and poisoning of the acid sites. Meanwhile, hierarchical NaZSM-5 showed high selectivity to phenolic compound, which became more stable for 0.4M NaOH-treated zeolite (Na04). The current findings provide an additional insight on the potentials of NaZSM-5 for bio-oil valorization.
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页数：7
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