ARRANGEMENT FOR AND A METHOD OF OPERATING A STEAM BOILER SYSTEM

    公开(公告)号:US20230016404A1

    公开(公告)日:2023-01-19

    申请号:US17786258

    申请日:2019-12-18

    发明人: Antti ROKKA

    摘要: A method of operating and an arrangement for a steam boiler system including a furnace and along a following flue gas channel a number of superheaters, a number of economizers, and at least one air preheater located in the flue gas channel downstream of the economizers, a fabric filter baghouse located in the flue gas channel downstream of the air preheater, and downstream of the fabric filter baghouse is located a selective catalytic reduction (SCR) system including an SCR reactor, a high pressure steam coil heater upstream of the SCR reactor and a gas-gas heat exchanger connected upstream and downstream of the SCR reactor to transfer heat from flue gas after the SCR reactor to the flue gas upstream of the high pressure steam coil heater.

    OPTIMISING OPERATING CONDITIONS IN AN ABATEMENT APPARATUS

    公开(公告)号:US20220362711A1

    公开(公告)日:2022-11-17

    申请号:US17763940

    申请日:2020-09-23

    申请人: Edwards Limited

    IPC分类号: B01D53/70 B01D53/34

    摘要: A method of optimising operating conditions in an abatement apparatus configured to treat an effluent stream from a processing tool and an abatement apparatus are disclosed. The method of optimising operating conditions in an abatement apparatus configured to treat an effluent stream containing PFC from a processing tool comprise: changing an operating parameter which controls an operating condition of the abatement apparatus; determining a change in a PFC concentration present in an exhaust stream of the abatement apparatus; and determining whether to retain the operating parameter based on the change in the PFC concentration. In this way, the concentration of PFC present in the exhaust can be used to determine whether the abatement apparatus is operating under the correct operating conditions or not.

    AIR TREATMENT SYSTEM
    29.
    发明申请

    公开(公告)号:US20220184433A1

    公开(公告)日:2022-06-16

    申请号:US17501449

    申请日:2021-10-14

    摘要: An air treatment system includes a cyclone filter and an electrostatic filtration system. The cyclone filter may include a cyclone chamber, a cyclone chamber inlet configured to receive air including suspended particulates, and a cyclone chamber outlet configured to output treated air toward a respiratory interface, e.g., a mask or face shield. The cyclone filter produces a rotational airflow that removes at least some particulates from the air in the cyclone filter. The electrostatic filtration system is configured to charge the particulates in the cyclone chamber with a first polarity to produce an electrostatic attraction of the particulates to a particulate removal system charged with an opposite second polarity, to remove additional particulates from the cyclone filter. The air treatment system may also include an ultraviolet purification system to deliver ultraviolet radiation (e.g., UVC radiation) to kill, destroy or otherwise affect organic particulates in the air being treated.