ANALYSIS OF REFORMED GAS BY GAS CHROMATOGRAPHY

Reformed gas is a lower-thermal-value fuel gas made by pyrolysis and steam decomposition of high-thermal-value natural and refinery gases. CO can be removed from the reformed gas, and simultaneously high-purity hydrogen can also be obtained, which leads to the increase of a fuel efficiency and the inhibition effect of performance deterioration.SGS follows the ASTM’s standards for the determination of the chemical composition of reformed gases and similar gaseous mixtures containing the following components: hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, methane, ethane, and ethylene.

Components in a sample of reformed gas are physically separated by gas chromatography and compared to corresponding components of a reference standard separated under identical operating conditions, using a reference standard mixture of known composition. The composition of the reformed gas is calculated by comparison of either the peak height or area response of each component with the corresponding value of that component in the reference standard.