|
|
NO catalytic oxidation over pure-silica zeolite silicalite-1 at low temperature |
QIAN Ding-li, ZHOU Fei-xiang, WANG Jun, WU Xiang-hao, ZHAO Hai-yang, ZHU Qiu-lian, LIU Hua-yan, LU Han-feng |
Research Institute of Catalytic Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China |
|
|
Abstract In this paper, pure-silica zeolite silicalite-1 was employed for NO catalytic oxidation, to enhance water resistance and sulfur tolerance. The influences of relative humidity (0%~100%), space velocity, O2 concentration (5%~20%) and SO2 concentration (0%~0.04%) were investigated, under 0.06% inlet NO concentration. Experimental results revealed that the NO oxidation conversion displayed little variation at 42% under 100% RH, though decreased from 56% to 42% as the relative humidity increased from 0% to 100%. Meanwhile SO2 concentration (0%~0.04%) had little impact on NO oxidation reaction. Silicalite-1 performed excellent active stability, water resistance and sulfur tolerance, as the NO oxidation conversion was maintained at 52% in 60h lifetime test, under 30℃, 0.06% NO, 0.01% SO2, 7200h-1SV and 100% RH.
|
Received: 09 November 2016
|
|
|
|
|
[1] |
周松,李埩,许铁夫.船舶SOx排放控制技术研究[J]. 柴油机, 2015,37(5):14-19.
|
[2] |
杨业,徐超群,岑可法,等.臭氧氧化结合硫代硫酸钠溶液喷淋同时脱硫脱硝[J]. 化工学报, 2016,67(5):2041-2047.
|
[3] |
李玉芳,刘华彦,黄海凤,等.疏水型H-ZSM-5分子筛上NO氧化反应的研究[J]. 中国环境科学, 2009,29(5):469-473.
|
[4] |
Shen Y F, Ge X L, Chen M D. Catalytic oxidation of nitric oxide (NO) with carbonaceous materials[J]. RSC Advances, 2016, 6(10):8469-8482.
|
[5] |
Isao M, Kisamori S, Hironaka M, et al. Oxidation of NO into NO2 over active carbon fibers[J]. Energy and Fuels, 1994,8(6):1341-1344.
|
[6] |
Chen H Y, Wei Z H, Marton K M, et al. NO oxidation on zeolite supported Cu catalysts:Formation and reactivity of surface nitrates[J]. Catalysis Today, 2016,vol.267:17-27.
|
[7] |
Akter N, Han L X, Huaman D, et al. NO and NH3 Oxidation over Zeolite Materials[J]. Materials Today:Proceedings, 2016,3(2):550-555.
|
[8] |
高月明,于庆君,唐晓龙,等.Cu-ZSM-5对燃气烟气中NO的吸附特性[J]. 中国环境科学, 2016,36(8):2275-2281.
|
[9] |
许钰娟,刘华彦,张泽凯,等.全硅β分子筛催化氧化NO性能研究[J]. 环境工程学报, 2010,4(7):1605-1608.
|
[10] |
鲁慧彬,彭勇,王正宝.水热合成过程中silicalite-1晶体形貌和尺寸的调控[J]. 石油学报(石油加工), 2016,32(3):461-467.
|
[11] |
史静,赵国良,滕加伟,等.MFI型沸石形貌研究[J]. 化学进展, 2014,26(4):545-552.
|
[12] |
Peng Y, Lu H B, Wang Z B, et al. Microstructural optimization of MFI-type zeolite membranes for ethanol-water separation[J]. J Mater Chem A, 2014,21(38):6093-16100.
|
[13] |
Liu Shuang, Zhang Mintao, Huang Yangqiang. A novel chromic oxide catalyst for NO oxidation at ambient temperature[J]. RSC Advances, 2014,4:29180-29186.
|
[14] |
Novruzova N, Tuel A, Farrusseng D, et al. Influence of crystal size on the uptake rate of isooctane in plain and hollow silicalite-1crystals[J]. Microporous and Mesoporous Materials, 2016,228:147-152.
|
[15] |
Mu X H, Wang D Z, Wang Y R, et al. Nanosized molecular sieves as petroleum refining and petrochemical catalysts[J]. Chinese Journal of Catalysis, 2013,34(1):69-79.
|
[16] |
张晓晓,王晓东,任春凤,等.合成条件对silicalite-1沸石分子筛形貌的影响[J]. 太原理工大学学报, 2014,45(3):315-318.
|
[17] |
刘华彦,李玉芳,李希.高硅ZSM-5分子筛表面NO常温氧化过程中的吸附与催化[J]. 高校化学工程学报, 2011,25(4):615-621.
|
[18] |
汪林林,李裕,薛泽慧,等.磁性全硅分子筛的制备及其吸附分离性能[J]. 中国陶瓷, 2016,52(4):78-82.
|
|
|
|