218405 直接接触式硫酸濃縮における物質移動係数測定装置の検討(一般04 熱力学・熱工学3)

概要

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The Iodine-Sulfur (IS) process is a promising candidate of large scale hydrogen production methods. The present study concerns with development of IS process equipment utilizing direct contact heat exchanger (DCHX). The application of DCHX to the sulfuric acid decomposition step of IS process has been proposed such that the decomposed gas contacts with the sulfuric acid solution supplied from the bunsen reaction step. The concept is very attractive in terms of the development of compact and efficient sulfuric acid concentrator. However, little is known on the behavior of sulfuric acid in the DCHX, which is required for the equipment design. Therefore, we considered an experimental acquisition of essential design parameter of the DCHX, the gas-phase mass transfer coefficient. Based on this consideration, we designed wetted-wall column with an inner diameter of 15mm as experimental apparatus that used sulfuric acid of azeotropic composition and non-condensable gas, and experimental conditions was decided to Re_L≦100 and Re_G≦4000.
一般社団法人日本機械学会の論文
2011-03-17