Experimental investigations on ignition sensitivity of hybrid mixtures of oil shale dust and syngas
Experimental investigations on ignition sensitivity of hybrid mixtures of oil shale dust and syngas
复制标题
油页岩粉尘与合成气混合混合物着火敏感性实验研究
DOI：
10.1016/j.fuel.2017.06.082
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发表时间：
2017-12
期刊：
影响因子：
7.4
通讯作者：
C. Yuan
中科院分区：
文献类型：
--
作者：
L. Yu;G. Li;W. Liu;J. Yu;C. Yuan
Hybrid mixtures of a combustible dust and flammable gas are usually encountered in many process industries. Ignition sensitivity parameters of such mixtures are critical to assess the possibility for accident to happen in industry. The work of this paper investigates the ignition sensitivity of the main four kinds of oil shale dusts of China and related dust/syngas hybrid mixtures. The experiments were carried out on the standardized 20-L spherical vessel, Hartmann apparatus and 1-m3explosion vessel. Comparing the results with that of bituminous coal, it was found that the ignition sensitivities of oil shale dusts are generally weaker than that of selected bituminous coal. Results show that the presence of syngas would significantly increase the ignition sensitivity of the hybrid mixtures. With the increasing of syngas contents (below its lower explosion limit) in the mixtures, the minimum ignition energy (MIE) and the minimum explosion concentration (MEC) decrease sharply. For example, the MIE of oil shale from Fushun and Huadian was observed to decrease from 16 J, 10 J to 1.25 mJ and 0.98 mJ, and the MEC dropped from 280 g/m3, 250 g/m3to 50 g/m3, 50 g/m3. When the syngas content is increased to 3% in volume, the influence of oil shale volatile content on MIE and MEC can be ignored for the four shale samples. The limiting oxygen concentration (LOC) has been investigated systemically in a 1-m3explosion vessel. It has been found that the LOC of oil shale dust from Longkou is 17% in volume, while the hybrid of 2% syngas and 350 g/m3of dust revealed the lowest LOC of 16% when nitrogen was used as the inert.
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DOI：
10.5860/choice.29-5140
发表时间：
1991-06
期刊：
Sensors (Basel, Switzerland)
影响因子：
--
作者：
R. Eckhoff
通讯作者：
R. Eckhoff
DOI：
10.1016/j.jlp.2006.04.003
发表时间：
2006-11
影响因子：
3.5
作者：
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通讯作者：
Fawaz K. Sweis
DOI：
10.1016/j.jlp.2009.03.006
发表时间：
2009-07
影响因子：
3.5
作者：
I. Zlochower;G. M. Green
通讯作者：
I. Zlochower;G. M. Green
DOI：
10.1016/s0950-4230(99)00043-1
发表时间：
2000-05
影响因子：
3.5
作者：
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通讯作者：
J. Going;K. Chatrathi;K. Cashdollar
影响因子：
13.6
作者：
G. Li;C. M. Yuan;Y. Fu;Y. Zhong;B. Chen
通讯作者：
G. Li;C. M. Yuan;Y. Fu;Y. Zhong;B. Chen