Process Principle

An appropriate amount of hydrogen is added into the feed nitrogen. After mixing, hydrogen and oxygen react to form water under the action of a palladium catalyst. The gas then undergoes cooling, water removal and deep adsorption drying to obtain high-purity nitrogen. Automatic cascade ratio control is adopted for hydrogen dosing, with a ratio accuracy of ±0.5%.

Automatic Control

Omron PLC control, automatic switching between operation and regeneration. Optional mass flow controller enables automatic hydrogen addition and ratio control.

Advanced Technology

Adopts domestically leading high-efficiency deoxidation catalyst with excellent activity, no heating required for activation and regeneration.

Reasonable Design

Fully enclosed structure, compact layout, attractive appearance and small footprint.

99.99992%

When nitrogen purity reaches 99.99992%, long-term stable and reliable operation can be maintained. The equipment is manufactured in accordance with international standards.

Technical Specifications

Nitrogen Production Rate 50~1000 Nm 3/h (Under standard conditions)	Nitrogen Pressure 0.1~0.8 MPa  (Gauge pressure, stable and adjustable)
Nitrogen Purity 99.9995%  (Non-oxygen content conforming to national standard)	Nitrogen Dew Point -40℃~-70℃  (Atmospheric pressure dew point)

Process Flow Diagram

Hydrogenation Deoxygenation Nitrogen Purification Selection Chart

Below is the selection table for Tongyue hydrogen-based nitrogen purification systems, featuring nitrogen purity of 99.99992%, along with air/nitrogen tank specifications and compressed air consumption. Please contact Tongyue sales personnel for further information.

Model	Length × Width × Height mm	Import caliber	Export scope	Weight (kg)	99.999%	Power supply	Power (kilowatts)	Hydrogen consumption Nm³/H	Cooling water circulation rate (t/h)
					Nitrogen production rate Nm³/h
JH50	1700*1100*2000	DN20	DN25	600	50	220V/50Hz	1	0.7	0.25
JH100	1700*1350**2000	DN32	DN25	700	100		1	1.5	0.50
JH150	2000*1400*2000	DN32	DN25	800	150		2	2.2	0.76
JH200	2300*1600*2000	DN40	DN40	900	200	380V/50Hz	10	2.9	1.01
JH250	2600*1900*2000	DN40	DN40	1000	250		13	3.7	1.26
JH300	2600*1900*2000	DN40	DN40	1050	300		15	4.4	1.51
JH400	2800*2300*2000	DN50	DN50	1300	400		21	5.9	2.02
JH500	2900*2300*2000	DN65	DN65	1450	500		25	7.3	2.52
JH600	3000*2300*2000	DN65	DN65	1500	600		30	8.8	3.03
JH700	3400*1890*2200	DN80	DN65	1600	700		35	10.3	3.53
JH800	3400*1935*2200	DN80	DN65	1700	800		40	11.7	4.03
JH900	4000*2065*2200	DN80	DN80	1900	900		46	13.2	4.54
JH1000	4200*2000*2200	DN80	DN80	2000	1000		50	14.7	5.04

An appropriate amount of hydrogen is added into the feed nitrogen. After mixing, hydrogen and oxygen react under the action of a palladium catalyst to form water. The gas is then subjected to cooling, water removal, and deep adsorption drying to obtain high-purity nitrogen. The hydrogen addition adopts automatic cascade ratio control, with a ratio accuracy of ±0.5%.