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These are widely used in many industries for heat treatment furnaces and are easy to operate and require low maintenance. Ammonia cracking takes place on Nickel catalyst at 850 degree C temperature. Around 100-ppm un-cracked ammonia is also present in cracked gas and its dew point is (-) 30 degree C. Cracking of ammonia is one of the most economical way for on-site generation of hydrogen gas for industrial purposes. For this process, the temperature of 850 degree C is maintained in the electrically heated furnace. A centrifugal cast retort is installed in the center of this furnace. This furnace is filled with nickel catalyst. At this stage, the ammonia cracking takes place in presence of nickel catalyst. The process separates its vital element into 75 % hydrogen and 25% nitrogen gas at dew point of (-)30 degree C.

Gas purifiers are used to purify gases in a process stream. In fact, these gas purifiers are used to reduce or eliminate point-of-use impurities in gases such as methane, nitrogen, oxygen, hydrogen, and carbon dioxide. A gas purifiers are most suitable to remove moisture, hydrocarbons, oxygen and other impurities that can decrease yields or form oxides and hazes. As we know, gas impurities can also cause distribution leaks, improper purging, and system breaches.