Experiments on n-heptane combustion with two types of catalyst layouts
Experiments on n-heptane combustion with two types of catalyst layouts
复制标题
两种催化剂布局正庚烷燃烧实验
DOI：
10.1016/j.applthermaleng.2016.02.010
复制
发表时间：
2016-05
影响因子：
6.4
通讯作者：
Cen Kefa
中科院分区：
文献类型：
--
作者：
Yang Weijuan;Zhou Mingyue;Deng Chen;Huang Tiao;Zhou Junhu;Wang Zhihua;Liu Jianzhong;Cen Kefa
在填充床微型燃烧器中使用两种催化剂布局，即连续（A型）和两段式（B型）类型，进行正庚烷燃烧。采用铈锆固溶体负载铂作为催化剂。两种燃烧室由于催化剂布置的不同而表现出不同的燃烧特性。B型显著扩大了稳定燃烧的雷诺数（Re）上限，在当量比Φ= 1.6的富油工况下，Re = 1500时保持稳定燃烧。A型在低Revalues时更有利，低Relimit降低到12。A型和B型的壁温分布分别为单峰和双峰。B型的双峰分布不仅减缓了壁温随Re的变化，而且证明了喉部发生了无催化剂的均质燃烧。由于燃烧过程的不同，A型煤与B型煤相比，其产物沿着长度方向的变化趋势不同。此外，两种类型的转化率在Re = 160时达到最大值（84.4%和88.3%）。B型转化率高的原因是多相/均相燃烧和较长的热回流区。
n-Heptane combustion was conducted in packed-bed micro combustors using two catalyst layouts, namely, continuous (type A) and two-sectional (type B) types. Cerium–Zirconium solid solution-supported platinum was adopted as catalyst. The two combustors demonstrated distinct combustion characteristics owing to their different catalyst layouts. Type B significantly expanded the upper limit of Reynolds number (Re) of stable combustion, maintaining stable combustion atRe= 1500 under fuel-rich conditions at an equivalent ratio ofΦ= 1.6. Type A was more advantageous at lowRevalues, and the lowerRelimit was reduced to 12. Types A and B displayed a single peak and a bimodal distribution of wall temperature, respectively. The bimodal distribution in type B not only slowed down the variation in wall temperature withRebut also proved that catalyst-free homogenous combustion occurred in the throat. As a result of the different combustion processes, type A showed different variation trends of products along the length compared with type B. Moreover, the conversion rates of the two types reached their maximum values (84.4% and 88.3%) atRe= 160. High conversion rate of type B was attributed to heterogeneous/homogenous combustion and long heat reflux zones.
登录
查看更多内容
DOI：
10.1016/j.proci.2004.08.265
发表时间：
2004
期刊：
--
影响因子：
--
作者：
J. Ahn;C. Eastwood;L. Sitzki;P. Ronney
通讯作者：
J. Ahn;C. Eastwood;L. Sitzki;P. Ronney
影响因子：
5.7
作者：
Zhang, C. -H.;Xue, L.;Wang, J.
通讯作者：
Wang, J.
影响因子：
--
作者：
Jacopo M. Legramante;Sergio Sacco;P. Crobeddu;A. Magrini;F. Valentini;G. Palleschi;M. Pallante;R. Balocchi;I. Iavicoli;A. Bergamaschi;A. Galante;L. Campagnolo;A. Pietroiusti
通讯作者：
Jacopo M. Legramante;Sergio Sacco;P. Crobeddu;A. Magrini;F. Valentini;G. Palleschi;M. Pallante;R. Balocchi;I. Iavicoli;A. Bergamaschi;A. Galante;L. Campagnolo;A. Pietroiusti
DOI：
10.1016/j.egypro.2014.12.038
发表时间：
2014
期刊：
Energy Procedia
影响因子：
--
作者：
R. Yao;Zuozhen Qiu;Junwei Li;Jinhuai Huang;Xinjian Chen;Ning-fei Wang
通讯作者：
R. Yao;Zuozhen Qiu;Junwei Li;Jinhuai Huang;Xinjian Chen;Ning-fei Wang
影响因子：
7.4
作者：
Zhaolei Zheng;M. Yao
通讯作者：
Zhaolei Zheng;M. Yao