What is generally chosen for high-temperature heating devices in laboratories?
Thread Content
The laboratory plans to design a pilot-scale plant, with the reactor being either a tubular reactor or a fixed-bed reactor. The reaction temperature is between 500–600°C; what type of heating device is generally used? Those who manufacture complete sets of equipment or individual heating devices in this field, please contact QQ190235348. Thank you!
We have a set that costs over 400; it uses electric heating, but the heating is uneven and the temperature control is unstable. Electric heating in a pipe reactor requires preheating
Laboratories generally use resistance wires for heating, as they are easy to wind.
The last edit to this post was made by zjlao*ang on 2017-7-11 at 10:00. Pilot plants all use electric heating; the pipes are electrically heated and insulated. Better furnaces are equipped with ATS systems, and temperature control depends mainly on the skills of the programmer. As for the furnace temperature of 500–600°C, this is because the reactor and pipes have high heat dissipation rates, along with fast flow rates of the material and short residence times.
Molten salt might just suffice, and the temperature remains relatively uniform; one could ask molten salt manufacturers whether they have high-temperature molten salts available
Use an electric heater decisively. The pilot-scale ammonia synthesis unit in our school is just that
Electric heater with segmented temperature control.
In the laboratory, it’s of course convenient to use electricity. Additionally, if high temperature requirements exist, salt bath heating can be considered; this involves using electricity to heat a salt bath, which is then used to heat the materials. This way, the temperature can be controlled more accurately, which is convenient and fast.
This post was last edited by jinqhuaxz on 2017-7-15 at 12:42. For laboratory use, electricity is the best option; for production facilities, the most cost-effective solutions are preferred. If environmental considerations are a factor, natural gas is a suitable choice. If there are devices that have used charcoal gas (the combustible gas produced when charcoal is carbonized).