Thermally coupled monolith reactors with enhanced heat transfer for conducting simultaneous endothermic and exothermic reactions
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Thermally coupled monolith reactors with enhanced heat transfer for conducting simultaneous endothermic and exothermic reactions
Junjie Chen
Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China
Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com
A reactor must be of sufficient length to allow a reaction to proceed to the required conversion. Utilizing high gas velocities typically results in reactors with large length to width ratios which again results in systems with high pressure drops. The smaller the characteristic dimension of the catalyst particle the higher is the utilization of the catalyst. This is sometimes expressed as a higher effectiveness factor. However, beds formed from small particles exhibit higher pressure drops than similar beds formed from larger particle. So, an engineer designs a system with expectable compromises between heat transfer, catalyst utilization, system conversion, and pressure drop. Therefore, a reactor for conducting catalytic processes which can promote overall heat transfer and levels of conversion whilst minimizing pressure drop is desired. Another deficiency of traditional heat transfer equipment is start-up time and thermal response to transients. As reactors are traditionally large and heavy, they have significant thermal inertia. Therefore, the system takes significant time to re-equilibrate from any change in load or process operating conditions. Therefore, a reactor with enhanced response characteristics particularly for rapid start up is desired. A number of methods have been directed to methods of increased heat transfer within reactors and towards low pressure drop catalytic reactors and processes.
Streamwise distance (meters), Heat flux (watts per square meter)
0 24445.8
0.00025 134016
0.0005 131072
0.00075 151168
0.001 85641.3
0.00125 -1444
0.0015 -1860.19
0.00175 -1518.44
0.002 54696.4
0.00225 97408
0.0025 82176
0.00275 94848
0.003 54951.4
0.00325 272.062
0.0035 190.062
0.00375 172.75
0.004 30551.3
0.00425 55808
0.0045 50432
0.00475 60160
0.005 35216.3
0.00525 267.563
0.0055 230.062
0.00575 199.562
0.006 21724.7
0.00625 39680
0.0065 35840
0.00675 42112
0.007 24419.8
0.00725 184.875
0.0075 157.375
0.00775 138
0.008 18497.7
0.00825 33024
0.0085 28672
0.00875 32384
0.009 18375
0.00925 128.25
0.0095 103.25
0.00975 90.5625
0.01 16940.7
0.01025 29440
0.0105 24448
0.01075 26496
0.011 14644.3
0.01125 91.5
0.0115 68.8125
0.01175 61.3125
0.012 16031.7
0.01225 27392
0.0125 22016
0.01275 23040
0.013 12456.8
0.01325 69.125
0.0135 47.6875
0.01375 42.5
0.014 15255.2
0.01425 25856
0.0145 20096
0.01475 20224
0.015 10784.7
0.01525 53.8125
0.0155 33.375
0.01575 30.25
0.016 14481.9
0.01625 24192
0.0165 18304
0.01675 17792
0.017 9241.95
0.01725 40.7501
0.0175 21.3125
0.01775 19.5625
0.018 13581
0.01825 22528
0.0185 16768
0.01875 15872
0.019 8084.96
0.01925 31.375
0.0195 12.5
0.01975 11.3125
0.02 12809.2
0.02025 20992
0.0205 15104
0.02075 13824
0.021 6927.91
0.02125 21.8125
0.0215 4.18748
0.02175 3.87499
0.022 11653.6
0.02225 18816
0.0225 13312
0.02275 12032
0.023 5900.31
0.02325 15.5625
0.0235 -0.375003
0.02375 -0.250023
0.024 10115.4
0.02425 16384
0.0245 11520
0.02475 10496
0.025 5258.69
0.02525 13.5625
0.0255 0.125008
0.02575 -2.83833E-05
0.026 8578.74
0.02625 13824
0.0265 9856
0.02675 9216
0.027 4618.92
0.02725 15.75
0.0275 5.68751
0.02775 5.625
0.028 6404.77
0.02825 10624
0.0285 8320
0.02875 8832
0.029 4751.49
0.02925 26.8125
0.0295 20.3125
0.02975 16.3125
0.03 2.63005
Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China
创建时间：
2024-07-15
