Trichlorosilane synthesis furnace

Well, whether the temperature is high or not – the temperature for synthesizing hydrochloric acid is above 700 degrees, and it’s fine to use circulating water. What material is it made of?

Would it be better to use heat transfer oil to remove heat?

In other words, it’s about ensuring that the volume of water in the circulation system doesn’t decrease as much as possible! ! As long as the flow rate of water in the cycle is ensured, there should be no problems! ! !

Synthesis is also considered a mature process; you must be a new factory, right? Even with mature processes, it’s not easy for beginners

The heat load issue should have been taken into account during the design, so there should be no problems with heat exchange. I think it mainly depends on whether the heat exchange tube bundle is capable of removing heat; this is related to the internal design of the furnace. It also depends on factors such as the arrangement of the tubes, their height, the way in which the manifolds are installed, the choice of air caps, and the amount of air supplied. All these factors need to be considered together, and by eliminating each factor one by one, the final answer can be found. What is the temperature of the return water? Is the amount of steam produced large? Without these data, it’s impossible to conduct an analysis

It seems that the design of the heat exchanger is very crucial!

With water, the common practice is to have water flow in while steam flows out, or a mixture of steam and water; I’ve never seen circulating water being used in this way

Recycled water will do, but desalinated water is required. The outlet temperature will drop to 190 degrees; after dry dust removal and wet dust removal, the temperature is only in the 30s

This post was last edited by Taishan Salt Chemicals on 2009-5-2 at 16:10. Cooling is achieved using hot water at around 90°C; this hot water comes from the condensate generated by steam tracing in the system, which not only helps to prevent excessive temperature differences but also saves energy.

There are two main sources of heat removal during the reaction process. One of these is external to the reactor; nowadays, jackets are commonly used, with water or steam flowing inside them to remove the heat generated on the walls of the reactor； The internal finger tubes are also layered, and heat transfer oil is generally used to remove the heat generated by the reaction. The internal temperature of the reaction reactor is generally maintained at around 330 degrees. As far as I know, among the manufacturers I am aware of, there has been no instance of pipes being damaged due to large temperature differences. There is internal finger-shaped wear, which is caused by the frequent scouring by silicon powder; it is necessary to conduct regular inspections and replacements, and this is also related to the angle of the silicon powder distributor designed.