Use of mercury chloride catalysts
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What is the flux per cubic meter of acetylene for mercury chloride catalysts? Is there any reference figure? 20-40M3/H refers to the flux per unit machine or the flux per cubic meter.
Your usage conditions need to be explained in detail – the reactor, temperature, and so on – before we can discuss it! ! ! QQ277347538
One of the factors that affect conversion is called space velocity, defined as the flow rate of fluid per unit volume of catalyst per unit time, in units of m^3/m^3*h; it is usually expressed in terms of acetylene. The space velocity for VCM synthesis is generally between 25 and 40. The unit you provided is incorrect
This should be the catalyst flux per unit; the flux for a single converter is 300–400 m3/h (for the mixture).
Converters come in different sizes, and the diameter of the tubes varies as well; therefore, the amount of catalyst used also differs. I think yours is likely intended for use only in your company’s production processes, or by manufacturers that produce converters similar to yours
Main control parameters of the converter: 1. Space velocity of acetylene: The space velocity of acetylene inside the converter is approximately 40~60 m3/(m3·h). An excessively high reaction intensity can cause the temperature to exceed 180 °C, leading to the sublimation and loss of mercuric chloride and thus reducing the catalyst’s service life; on the other hand, an excessively low reaction intensity affects the yield. 2. Temperature: The reaction temperature of the converter should be maintained between 100 and 180°C. Increasing the reaction temperature helps to accelerate the vinyl chloride synthesis reaction and achieve a higher conversion rate. Excessively high temperatures can cause the mercuric chloride adsorbed on the mercury chloride catalyst to sublimate and be carried away with the gas flow, thereby reducing the catalyst’s service life.
Main control parameters of the converter: 1. Space velocity of acetylene: The space velocity of acetylene inside the converter is approximately 40~60 m3/(m3·h). An excessively high reaction intensity can cause the temperature to exceed 180 °C, leading to the sublimation and loss of mercuric chloride and thus reducing the catalyst’s service life; on the other hand, an excessively low reaction intensity affects the yield. 2. Temperature: The reaction temperature of the converter should be maintained between 100 and 180°C. Increasing the reaction temperature helps to accelerate the vinyl chloride synthesis reaction and achieve a higher conversion rate. Excessively high temperatures can cause the mercuric chloride adsorbed on the mercury chloride catalyst to sublimate and be carried away with the gas flow, thereby reducing the catalyst’s service life.
Too low an air velocity and too high a temperature can also cause another problem: an increase in by-products (mainly dichloroethane)