The Structure Effect on the Activity and Strength of an Industrial Honeycomb Catalyst Derived from Different Ti Sources

doi:10.3390/catal10010042

CAS OpenIR

	The Structure Effect on the Activity and Strength of an Industrial Honeycomb Catalyst Derived from Different Ti Sources
	Li, Yunjia 1,2; Abubakar, Abdullahi 1,2; Lin Huangfu 1,2; Li, Changming 1; Li, Jianling 1; Yu, Jian 1; Gao, Shiqiu 1
	2020
Source Publication	CATALYSTS
Volume	10 Issue:1 Pages:11
Abstract	A new honeycomb production process was proposed with both filter cake (from hydrothermal treatment of metatitanic acid) and industrial titanium dioxide as Ti sources. The strength of the obtained pilot product was comparable with the current industrial honeycomb product from only filter cake, but its denitration (DeNO(x)) efficiency was elevated up to 15 percentage points. Multiple characterizations revealed the filter cake and industrial titanium dioxide to be composed of primary particles and secondary particles, respectively, and the introduced secondary particles from industrial titanium dioxide resulted in increased specific surface area and pore size/volume, facilitating the exposure of more active sites with improved activity. Moreover, a positive correlation property was found between the honeycomb strength and crystallinity for the samples from different titanium sources. The filter cake with rich hydroxyl groups and weak crystallinity could be fused more easily among these primary particles to have a higher strength than industrial titanium dioxide, and the primary particle of the filter cake could fill the pile pore of industrial titanium dioxide and act as a solid phase binder to acquire good strength for the honeycomb using both the filter cake and titanium dioxide as Ti sources. The improved honeycomb product with good activity and strength may have more widespread application for the purification of low temperature flue gas in industry.
Keyword	honeycomb catalyst DeNO(x) efficiency strength structure effect
DOI	10.3390/catal10010042
Language	英语
WOS Keyword	REDUCTION ; NO ; DECOMPOSITION ; NH4HSO4 ; DENO(X) ; GAS
Funding Project	National Key Research and Development Program of China[2017YFB0310403] ; Natural Science Foundation of China[21601192] ; Natural Science Foundation of China[21878310] ; State Key Laboratory of Multi-phase Complex Systems[MPCS-2019-0-03]
WOS Research Area	Chemistry
WOS Subject	Chemistry, Physical
Funding Organization	National Key Research and Development Program of China ; Natural Science Foundation of China ; State Key Laboratory of Multi-phase Complex Systems
WOS ID	WOS:000516825000042
Publisher	MDPI
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/39791
Collection	中国科学院过程工程研究所
Corresponding Author	Li, Changming; Yu, Jian
Affiliation	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Li, Yunjia,Abubakar, Abdullahi,Lin Huangfu,et al. The Structure Effect on the Activity and Strength of an Industrial Honeycomb Catalyst Derived from Different Ti Sources[J]. CATALYSTS,2020,10(1):11.
APA	Li, Yunjia.,Abubakar, Abdullahi.,Lin Huangfu.,Li, Changming.,Li, Jianling.,...&Gao, Shiqiu.(2020).The Structure Effect on the Activity and Strength of an Industrial Honeycomb Catalyst Derived from Different Ti Sources.CATALYSTS,10(1),11.
MLA	Li, Yunjia,et al."The Structure Effect on the Activity and Strength of an Industrial Honeycomb Catalyst Derived from Different Ti Sources".CATALYSTS 10.1(2020):11.

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