Method and apparatus for analyzing a separator and plant for treating incoherent plastics
A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.
1 . A method of analysis including the steps of:
generating a flow of process gas through a separator from an inlet side to an outlet side of the separator;
detecting limonene concentrations in the process gas on the inlet side and/or on the outlet side;
introducing the process gas coming from the outlet side into a container of material to be processed;
detecting a limonene concentration in the gas in the container or in the gas coming from an outlet of the container;
determining at least one operating condition based on concentrations detected in the detecting steps.
2 . The method according to claim 1 , wherein the at least one operating condition includes an operating condition of the separator and/or an operating condition of the material.
3 . The method according to claim 1 , wherein the separator includes at least one filtration device with at least one absorption filter medium.
4 . The method according to claim 3 , wherein the at least one absorption filter medium is of the activated carbon type.
5 . The method according to claim 1 , wherein the separator is configured to filter one or more volatile organic compounds.
6 . The method according to claim 5 , wherein the one or more volatile organic compounds includes benzene and/or toluene and/or limonene.
7 . The method according to claim 1 , wherein the separator includes at least one gas condensing unit.
8 . The method according to claim 1 , wherein the separator includes a molecular sieve dehumidification device.
9 . The method according to claim 1 , wherein the separator is configured to filter one or more volatile organic solvents.