Discussion on some questions regarding the operation process of the roughing tower
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Our unit has a roughing tower primarily used for separating trichlorosilane and silicon tetrachloride. Operating pressure: 0.2 MPa. The temperature of the reflux tank is controlled at around 40 degrees. However, the vent at the top of the tower remains open at about 20% at all times. How to operate or adjust in order to maintain stable tower pressure while closing or reducing the anti-backflow valve. Reduce the waste from venting trichlorosilane.
The most economical approach is to gradually reduce the heat source at the bottom of the tower, until the pressure relief valve at the top is closed to about 5% of its opening; maintaining an appropriate degree of opening is necessary to ensure unobstructed flow in the pipelines
After reducing the steam volume, the feed rate fails to meet the requirements. It increases after extraction from the tower bottom. The tower top output is affected.
OP, can we add each other on QQ? Let’s discuss the production process of trichlorosilane together. Thank you. QQ 455732743