Design and performance evaluation of ortho-para H2 conversion equipment

Title
Design and performance evaluation of ortho-para H2 conversion equipment
Authors
백종훈강병하
Keywords
Ortho-pana 수소변환; 수소액화; 촉매
Issue Date
1998-09
Publisher
수소에너지
Citation
VOL 9, NO 3, 93-100
Abstract
The ortho-para H_2 catalytic conversion equipment has been developed to reduce the evaporation loss from stored liquid hydrogen. The ortho-para H_2 conversion heat is evaluated at liquid nitrogen temperature. This problem is of particular interest in the design of the ortho-para H_2 conversion equipment consists of a catalytic converter, a precooler, and a liquid nitrogen bath. 30-90 cc of Fe(OH)_3 are employed as a catalyst in the present converter. The conversion heat and conversion effectiveness are evaluated when mass flow rate of hydrogen is in the range of 0.05-1.6 g/min. It is found that the ortho-para H_2 conversion heat is increased while conversion effectiveness is decreased as the mass flow rate of hydrogen is increased. Both the ortho-para conversion heat and conversion effectiveness are increased with an increase in the amount of the catalyst.
URI
http://pubs.kist.re.kr/handle/201004/18615
ISSN
1226-0320
Appears in Collections:
KIST Publication > Article
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