Continuous Bunsen reaction and simultaneous separation using a counter-current flow reactor for the sulfur–iodine hydrogen production process

2013 ◽  
Vol 38 (14) ◽  
pp. 6190-6196 ◽  
Author(s):  
Hyo Sub Kim ◽  
Young Ho Kim ◽  
Sang Jin Han ◽  
Chu Sik Park ◽  
Ki Kwang Bae ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Production Process ◽  
Current Flow ◽  
Flow Reactor ◽  
Simultaneous Separation ◽  
Counter Current Flow ◽  
Counter Current

Phase Separation Characteristics of Pressurized Bunsen Reaction for Sulfur-Iodine Thermochemical Hydrogen Production Process

2012 ◽  
Vol 550-553 ◽  
pp. 554-557 ◽  
Author(s):  
Young Ho Kim ◽  
Hyo Sub Kim ◽  
Sang Jin Han ◽  
Chu Sik Park ◽  
Ki Kwang Bae ◽  
...  
Keyword(s):  
Phase Separation ◽  
Hydrogen Production ◽  
Production Process ◽  
Flow Reactor ◽  
Continuous Operation ◽  
Side Reactions ◽  
Steady State Operation ◽  
Production Of Hydrogen ◽  
Continuous Reaction ◽  
Counter Current

The Sulfur-Iodine (SI) thermochemical hydrogen production process is promising method for the massive production of hydrogen using the high temperature thermal energy of VHTR. For continuous operation of SI process, the conditions of Bunsen reaction are considered as the pressurized conditions with ca. 373~393K temperature and the composition of Bunsen products should be kept constant during the reaction. Therefore, we carried out the continuous Bunsen reaction using a counter-current flow reactor at pressurized condition to investigate the phase separation characteristics of pressurized Bunsen reaction. As the results, the composition of Bunsen product was maintained constantly as the evidence for the steady-state operation. The continuous reaction was operated without occurrence of side reactions, and a H2SO4 phase and HIx phase as the product contains a small amount of impurities (HI in a H2SO4 phase and H2SO4 in a HIx phase). We concluded that the pressurized Bunsen reaction is favorable to the continuous operation of SI process than the atmospheric reaction.

Bunsen Reaction Using a Counter-Current Flow Reactor in Sulfur-Iodine Hydrogen Production Process: Effects of Reactor Shape and Temperature

2011 ◽  
Vol 347-353 ◽  
pp. 3238-3241
Author(s):  
Young Ho Kim ◽  
Hyo Sub Kim ◽  
Sang Jin Han ◽  
Chu Sik Park ◽  
Ki Kwang Bae ◽  
...  
Keyword(s):  
Phase Separation ◽  
Hydrogen Production ◽  
Water Splitting ◽  
Current Flow ◽  
Flow Reactor ◽  
Heat Energy ◽  
Continuous Operation ◽  
Storage Tanks ◽  
Process Effects ◽  
Counter Current

The sulfur-iodine (SI) cycle, thermochemical water splitting using heat energy from nuclear, is one of the most promising methods for massive hydrogen production. For continuous operation of Bunsen reaction section in SI process, the reactants (SO2, I2 and H2O) were fed to the reactor and the products (a H2SO4 phase and a HIx phase) were sent to storage tanks continuously during the reaction. In this study, we investigated the phase separation characteristics of continuous Bunsen reaction on the reactor shape and temperature. It was found that the reactor shape has little affected on the composition of Bunsen products. It was also observed that the phase separation characteristics of the continuous Bunsen reaction were similar to those for the semi-batch Bunsen reaction.

Hydrodynamics of gas–liquid counter-current flow in solid foam packings

2005 ◽  
Vol 60 (22) ◽  
pp. 6422-6429 ◽  
Author(s):  
C.P. Stemmet ◽  
J.N. Jongmans ◽  
J. van der Schaaf ◽  
B.F.M. Kuster ◽  
J.C. Schouten
Keyword(s):  
Current Flow ◽  
Solid Foam ◽  
Counter Current Flow ◽  
Counter Current
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