Gas-water separation and expanded gas route
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Help: What is the routing for sending the expanded gas from the gas-water separation unit? Is there a technician with experience at 800#, so we can discuss it?
Normally, it is sent for sulfur recovery. Sulfur recovery stops feeding gas to the gasification flare or the plant’s overall acidic gas flare. It usually is like this.
The acidic gas is sent to the plant-wide flare, while the other gas is sent to the gasification heat flare and sulfur recovery system. At the beginning of operation, a heat-of-vaporization torch was used, as the plant’s existing torches and sulfur recovery systems were not suitable for receiving it ； After stable operation, when sulfur recovery is abnormal, it is sent to the acid gas flare, at which point there is an adequate supply of fuel gas.
Theoretically, that’s the case. Is the blower for sulfur recovery at your site in use? The pipeline for sulfur removal and recovery is always under high pressure – what’s going on?
Well, it’s like this under normal circumstances. Is the blower for sulfur recovery at your site in use? What causes the pipeline for sulfur removal and recovery to be under overpressure? How should it be solved?
Well, which organization do you work for? Here, the acidic gases from water separation and phenol recovery are combined for sulfur recovery, so overpressure is inevitable
The overpressure in the desulfurization recovery pipeline may be caused by liquid accumulation in the external pipelines; check if there is any change in pressure after draining the liquid through the drainage lines along the pipeline； If the expanded gas and the acidic gas recovered from phenol are combined, based on the medium pressure, the pressure of the acidic gas is 0.3 MPa, while the pressure of the expanded gas is 0.05–0.1 MPa. For reference only!
Our company also carries out water separation and phenol recovery along with sulfur recovery; I am from Inner Mongolia. Which organization do you work for? Do you use expansion air blowers?
Drainage is okay in summer, but it’s very difficult in winter – even backflow gets frozen. We also send gas, water, and phenol to sulfur recovery. Do you use those inflated air blowers? Are there any requirements for the temperature of the expanded gas? Is the gas-liquid separator effective?
It is recommended to add heat tracing at the drain guide; the blower should operate normally, and the condensate at the blower’s inlet drain guide should be drained regularly.
The outlet temperature of the expanded gas cooler is controlled at 40°C; the flushing water remains on, the ball valve is set at 15% open, and the performance of the separator is satisfactory.