Efficient Energy-Saving Ammonia Decomposition Electric Furnace Equipment With Automated And Precise Temperature Control

In the ammonia decomposition furnace, liquid ammonia is heated to 800-850 ℃, and under the action of nickel based catalyst, ammonia is decomposed to obtain a hydrogen nitrogen mixture gas containing 75% H2 and 25% N2. The ammonia decomposition furnace equipment consists of an inner tank box, a furnace liner set in the inner chamber of the inner tank box, and at least two air pipes passing through the inner chamber of the inner tank box. The air pipes are connected to the inner chamber of the furnace liner. The inner chamber of the inner tank box is provided with multiple central pipes, which are equipped with electric heating wires. Multiple pairs of installation holes are opened on the outer wall of the inner tank box at both ends of the central pipe. Each installation hole is fixed with a sleeve, and the two ends of the central pipe are respectively inserted into the sleeve. The outer mouth of the sleeve has a sleeve cover.
Main components of ammonia decomposition furnace
An ammonia decomposition furnace comprises an inner tank body, a furnace liner arranged in the inner chamber of the inner tank body, and at least two air tubes passing through the inner tank body. The air tubes are connected to the inner chamber of the furnace liner body. Multiple central tubes are arranged in the inner chamber of the inner tank body, and electric heating wires are arranged on the central tubes. Multiple pairs of installation holes are opened on the outer walls of the inner tank body at both ends of the central tubes. Each installation hole is fixed with a sleeve, and the two ends of the central tubes are respectively inserted into the sleeve. The outer mouth of the sleeve has a sleeve cover. When the electric heating wire burns out, simply remove the central tube from the inner container and replace the electric heating wire. The process of replacing the ammonia decomposition furnace is simple and fast.
Brief description of ammonia decomposition furnace process
Using liquid ammonia as raw material, ammonia can be cracked to produce a 2.64Nm mixed gas per kilogram of liquid ammonia, which contains 75% hydrogen and 25% nitrogen. The obtained gas contains less impurities (about 2 grams/cubic meter of water vapor in the impurities and about 1000 ppm of residual ammonia). After passing through a molecular sieve (UOP, USA) adsorption purifier, the dew point of the gas can be reduced to below -60 ° C, and the residual ammonia can be reduced to below 3 ppm
The ammonia cracking hydrogen production furnace can be used for bright annealing of non-ferrous metals, silicon steel, chromium steel, stainless steel and other metal materials and parts, decarburization treatment of silicon steel sheets, copper based and iron-based powder metallurgy sintering, hydrogen burning treatment of metal parts in electric vacuum devices, protective sintering and sealing of semiconductor devices, and diffusion purification of hydrogen gas through palladium alloy membranes.
The raw material ammonia for ammonia decomposition furnace is easy to obtain, inexpensive, and consumes less raw materials. Ammonia cracking to produce protective gas has the advantages of low investment, small volume, and high efficiency.

This product is used as a protective atmosphere and has been widely applied in industries such as metal heat treatment, powder metallurgy, tungsten and molybdenum, magnetic materials, electronic ceramics, lighting appliances, and hard alloys.

This product gas can also be used as a hydrogen rich raw material gas to extract pure hydrogen, which is an economical hydrogen production method. Equipped with PAS or membrane fiber hydrogen nitrogen separation equipment and our company's gas purification device, it can remove residual and moisture from the decomposed mixed gas to meet users' requirements for high-quality protective atmosphere: residual ammonia content ≤ 5PPm, dew point ≤ -60 ℃.