1 Methane; gaseous, liquid or solid carbon dioxide (dry ice); the aforementioned gases in particular from biogas.
9 Gas analyzer; electrical installations for electricity network connection, electric current transformers; measuring devices, burettes and measuring instruments for process measuring and control technology in biogas plants and combined heat and power plants; apparatus and instruments for long-distance data transmission and remote control of biogas plants and combined heat and power plants; measuring devices and instruments for pressure measurement, namely for measuring high pressure and low pressure and control in biogas plants and combined heat and power plants.
11 Gas purification installations, in particular for separating undesirable components from biogas, for example carbon dioxide and/or hydrogen sulphide and/or nitrogen.
