초록 ▼

A gas treatment system for separating and eliminating gaseous hydrocarbon from treatment-object gas exhausted from, for example, a factory is disclosed. The system includes a rotary adsorbing-desorbing concentration device including a gas-permeable adsorbing rotor having adsorbent as a main componen

A gas treatment system for separating and eliminating gaseous hydrocarbon from treatment-object gas exhausted from, for example, a factory is disclosed. The system includes a rotary adsorbing-desorbing concentration device including a gas-permeable adsorbing rotor having adsorbent as a main component thereof, the rotor having in a rotational region thereof an adsorbing area for allowing passage of treatment-object gas containing gaseous hydrocarbon through a rotor portion corresponding thereto and a desorbing area for allowing passage of desorbing-concentrating gas through a rotor portion corresponding thereto, the adsorbing area and the desorbing area being arranged side by side and separated from each other along a rotational direction of the rotor, an adsorbing-desorbing recovery device for selectively effecting an adsorbing process for causing the desorbing-concentrating gas past the desorbing area to pass an adsorbent layer and a desorbing process for causing desorbing-recovering gas to pass the adsorbent layer, and a condensing recovery device for cooling adsorbing-recovering gas past the adsorbent layer so as to condense the gaseous hydrocarbon contained therein and then separating and recovering this condensed hydrocarbon from the gas. In this system, a desorbing-concentrating gas return passage is provided for returning desorbing-concentrating gas past the adsorbent layer after the desorbing layer to cause this desorbing-concentrating gas together with the treatment-object gas to pass the adsorbing area.

대표청구항 ▼

1. A gas treatment system comprising:a rotary adsorbing-desorbing concentration device including a gas-permeable adsorbing rotor having adsorbent as a main component thereof, the rotor having in a rotational region thereof an adsorbing area for allowing passage of treatment-object gas containing gas

1. A gas treatment system comprising:a rotary adsorbing-desorbing concentration device including a gas-permeable adsorbing rotor having adsorbent as a main component thereof, the rotor having in a rotational region thereof an adsorbing area for allowing passage of treatment-object gas containing gaseous hydrocarbon through a rotor portion corresponding thereto and a desorbing area for allowing passage of desorbing-concentrating gas through a rotor portion corresponding thereto, the adsorbing area and the desorbing area being arranged side by side and separated from each other along a rotational direction of the rotor; an adsorbing-desorbing recovery device for selectively effecting an adsorbing process for causing the desorbing 15 concentrating gas past the desorbing area to pass an adsorbent layer and a desorbing process for causing desorbing-recovering gas to pass the adsorbent layer; and a condensing recovery device for cooling adsorbing-recovering gas past the adsorbing layer so as to condense the gaseous hydrocarbon contained therein and then separating and recovering this condensed hydrocarbon from the gas; wherein the system further comprises a desorbing-concentrating gas return passage for returning the desorbing-concentrating gas past the adsorbent layer after the desorbing layer to cause this desorbing-concentrating gas together with the treatment-object gas to pass the adsorbing area.