Analysis of main products of syngas to olefins by on-line gas chromatography
An online analysis and evaluation device which contained gas chromatograph connecting to the microreactor of syngas to olefins (SGTO)was developed,and an online evaluation method for determining the main products of SGTO was built.The measurement results of standard samples showed that the relative standard deviation (RSD) of 3-time repeated C1-C≥11 hydrocarbons was within 5％;the recoveries of each component of inorganic gas were between 98.0％-104.0％,and the correlation coefficients of standard curve were all above 0.99,which meant all the components had good linear correlations.Three times repeated determination of C1-C5 hydrocarbon showed that the relative errors were within 2％,and the recoveries were between 99.0％-102.0％.The online measurement results of SGTO microreactor products showed that sampling process could be completed just by switching valves,and the whole analysis cycle was short,just within 70 min.Each component was well-separated in accordance with requirements,and this method could be completely applied to online testing of inorganic components,C1-C5 hydrocarbons and C1-C≥11 hydrocarbons in SGTO products.
NETL
NSTL
万方数据
维普
