Periodical monitoring of calorific values is necessary to ensure a stable supply of town gas. Since Shimadzu’s system GC is robust and designed for automated analysis, it is widely used for 24 hour/day online analysis in this field.
Dedicated software is able to calculate calorific values and indexes automatically.
Using the sample line selctor SLS-2020, a single system GC can analyse multiple samples without switching the sample line. This saves both running and initial costs.
Town gas analyzer lineup
|Model Name||Nexis GC-2030TGA1||Nexis GC-2030TGA2||Nexis GC-2030TGA3||Nexis GC-2030TGA4|
|Type of Detector||TCDx2||TCD||TCD||TCD|
|Target Compounds||H2, O2, N2, CO, CO2, C1, C2, C3 (each min. detection limit: 50 ppm)||O2, N2, CO, CO2, C1, C2, C3 (each min. detection limit: 50 ppm)||H2, O2, N2, CO, CO2, C1, C2, C3 (H2>0.1%, Others>50 ppm)||H2, O2, N2, CO, CO2, C1, C2 (H2>0.1%, Others>50 ppm)|
|Analysis Time||16 minutes||16 minutes||10 minutes||12 minutes|
|Others||Full range capability for H2||–||Good separation between CH4 and CO||Good separation between CH4 and CO|
Sample Line Selctor SLS-2020
GC-2014 system is also available for some applications.