The method of quantitative analysis for H2SO4-HI-H2O-I2 system solution in high concentration condition of I2 without calibration

摘要

The present invention, thermochemical hydrogen production processes (Process) of the sulfur-iodine thermochemical hydrogen production process according to Bunsen The quantitative analysis method of the resulting solution after the reaction. 4 ingredients under conditions contained in excess iodine and more particularly to a two liquid separation without interference effects due to iodine (sulfuric acid (H ₂ SO ₄ ) + hydroiodic acid ( HI) + water (H ₂ O) + iodine (I ₂ )), and also to a quantitative analysis is an analysis method that does not require calibration and analysis. ; The invention Bunsen reaction was complete H ₂ SO ₄ -HI-H ₂ OI ₂ in the quantitative analysis of the total solution, H ₂ SO ₄ -HI-H ₂ OI ₂ the total solution I ₂ is very soluble I ^- and diluted with an ionic solution to the step of preparing a diluted solution; The harvesting of diluent to H ₂ O and mixed neutralization titration with H ⁺ of quantitative phase analysis and by measuring the concentration; The harvesting the diluent to H ₂ O and mixed and oxidation-reduction titration with I ₂ of the step and quantitative analysis to measure the density; The harvesting of diluent to H ₂ O and mixed precipitation titration with I ^- concentration by measuring the phase of quantitative analysis; The I ^- in the diluted diluent with ionic solution I ^- and then analyzed the concentration of the ionic solution I ^- I ^{ionic solution -} to the dilution of I ^- values to exclude from I ^- analyzing quantified; comprises a ; The in accordance with the invention H ₂ SO ₄ -HI-H ₂ OI ₂ in the analysis of the total solution of high concentration I ₂ terms in the I ₂ , which is not affected by this analysis is possible and enables precise analysis of the analytical procedure is simplified. H ₂ SO ₄ -HI-H ₂ OI ₂ solution to any component in the system without being affected has the advantage of enabling the analysis of the components according to conventional SI load cycle studies be conducted in the Bunsen wider range of process parameters than process parameters range study of the reaction. The optimal process conditions are obtained through a precise analysis would increase the efficiency of hydrogen production cycle using the SI.