Biogas desulfurization project is an important part of biogas utilization, and its system composition includes the following parts:
1.Pre-treatment system.
The pretreatment system is the first step of the biogas desulfurization project, which mainly includes grids, grit tanks, sedimentation tanks and other facilities. The grid is used to remove large particulate matter and debris in the biogas to protect the subsequent desulfurization equipment from clogging or wearing; The grit remover is used to remove sand particles from biogas to reduce wear and tear on the equipment; Sedimentation tanks are used to remove suspended solids and impurities from the biogas to reduce the load on the subsequent desulphurization plant.
2.Desulfurization system.
The desulfurization system is the core part of the biogas desulfurization project, which mainly includes desulfurizers, regeneration towers, filters and other facilities. Desulfurizer is a substance used to absorb hydrogen sulfide in biogas, usually using activated carbon, iron oxide or zinc oxide as desulfurizer; The regeneration tower is a device used for the regeneration or recycling of the desulfurizer, which restores the activity of the desulfurizer by heating, blowing, etc.; Filters are used to further remove trace impurities and moisture from the desulphurized biogas.
3.Control system.
The control system is the nerve center of the biogas desulfurization project, mainly including various sensors, controllers and actuators. The sensor is used to monitor the concentration and flow rate of hydrogen sulfide, methane and other gases in biogas; The controller is the core equipment that controls the entire desulfurization system, and can automatically adjust the operation status of each equipment according to the monitoring data of the sensor; The actuator operates the operation of each device according to the instructions of the controller.
4.Security system.
The safety system is an important guarantee for the biogas desulfurization project, mainly including emergency shut-off valves, safety valves, fire-fighting facilities, etc. The emergency shut-off valve is used to quickly cut off the biogas in case of abnormal conditions to prevent the expansion of the accident; The safety valve is used to automatically release the gas when the pressure is too high to prevent damage to the equipment; Firefighting facilities are used to extinguish fires and deal with accidents such as fires.
5.Assistance systems.
The auxiliary system is the support system of the biogas desulfurization project, which mainly includes electrical, instrumental, pipeline and other facilities. Electrical facilities include transformers, motors, wires and cables, etc., to provide power support for the entire desulfurization project; The meter is used to monitor the operating status of each equipment and the quality of the biogas; Pipelines are used to connect the various devices and components to ensure the unimpeded flow of biogas.
To sum up, the biogas desulfurization project is a complex system composed of multiple parts such as pretreatment system, desulfurization system, control system, safety system and auxiliary system. In practical application, the appropriate process and equipment should be selected according to the specific situation to achieve efficient, safe and economical desulfurization effect. At the same time, it is also necessary to pay attention to the maintenance and maintenance of the entire system to ensure its long-term stable operation.