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PSA Plant

PSA Nitrogen/Oxygen Production Plant

Application fields of nitrogen

DNT series of nitrogen production equipment is widely used in fields of industry and mining companies, and scientific research, and the like.

.Heat treatment for metal: supply of nitrogen protection,Oozing nitrogen, brightness and anneal, and anti-oxidation.
.Electronical industry: using for supply of nitrogen protection for protection gas, dilution gas, taking with oxygen and automatization system semiconductor, and electron component processing, and the like.
.Powder metallurgy: nitrogen protection for powder agglomeration, and magnetism material agglomeration.
.Aluminum processing industry: aluminum products processing, and aluminum foil rolling gas protection
.Oil chemical industry: piping container for storing and filling nitrogen, replacement, leak hunting, and insulating protection of flammable gas.
.Medicine: material of pharmacy, packing for medicine with nitrogen, transportation and prevention for herbal medicine from moth and rot.
.Sea transportation: filling with nitrogen for transportation of kinds of chemical products, oil products, liquid natural gas, and so on.
.Protection for flammable and easy-exploded products: preventing dust exploding of storeroom and storing well, putting out a fire of the coal mine, transportation of ammunition.
.Compound fibre: Anti- oxidation by filling nitrogen and drawbench.float glass: gas protection in producing, anti-oxidation of stannum slot.
.Storing of foodstuff: insect killing, keeping fresh, and storing.

DTN nitrogen production equipments

working theory
DTN nitrogen production equipment is developed for nitrogen production based on the principle of Pressure Swing Adsorption (short for PSA) , which separates and getting nitrogen directly from compressed air by making use of high quality carbon molecular sieve as the adsorption material. Passing though purified and dried compressed air, making use of the selecting adsorption of the carbon molecular sieve to the oxygen and nitrogen in the compressed air, exerting dynamics domino offect, the diffusion rate of oxygen is much higher than nitrogen in tiny holes of carbon molecular sieve. When the adsorption doesn’t get to balance, the nitrogen is massed in the gas then the nitrogen product is formed. Then, after decompressed to be ordinary pressure, the absorption material disengages from the adsorbed impurity such as the oxygen and realizes rebirth. Normally, there are two adsorbing tower setted in the system, one adsorbs nitrogen, and the other disengages and regenerates. The two towers alternate and circulate with the gas valve controlled by PLC procedure, realizing a continuous producing of high quality nitrogen. Also, it can be disconnected producing, with a rapid startup and adjusting.

Features of product
.The whole equipment can be start and stop at any moment, with a short time startup and strong reliability.
.Convenient examination and repair for equipment, only a few easy-broken parts..Operated conveniently, complete monitor facilities, and it is even can be operated fully mechanically.
.Only a small covering of field and construction work, easily installation, a very low requirement for workshop.
.The design of absorption material inosculates technique from developed countries such as Germany, France, and Japan and so on, with both a double-floor bed and three-floor bed. The whole design of absorption material makes sure that the CMS won’t be leaked out and flowed, and insures the cleanliness of the nitrogen.
.For the facility of producing the nitrogen above 200N3/h, its switch Valve adopts the stainless butterfly type valve, and its performing Machinery. Adopts the aluminum alloy material. For the facility of producing the nitrogen below 200N3/h, its switch valve adopts the piston valve controlled by pressure, which can be functioned properly for millions of times.
.For the sets of controlling system, we adopt the advanced PLC controlling or data collecting supervising system,and the obligated joint can be supervised by computer.
.The whole set of equipment doesn’t need make any base for it.
.The scientific structure design, special facility for gas diffusion,avoid the phenomenon of strike by high speed airflow and molecular sieve powered.

We adopt the inner-balance automatic pressing facility and special technique of molecular sieve filling, increasing the reliability of the whole set of machine for a long running.

High efficiency oil eliminating filter

freeze-dry machine

DTN Nitrogen Production Equipment

Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN10	10	96	24
DTN20	20	96	48
DTN30	30	96	72
DTN40	40	96	96
DTN50	50	96	120
DTN60	60	96	144
DTN80	80	96	152
DTN100	100	96	240
DTN120	120	96	288
DTN150	150	96	360
DTN200	200	96	480
DTN250	250	96	600
DTN300	300	96	720
DTN400	400	96	960
DTN500	500	96	1200
DTN600	600	96	1440
DTN1000	1000	96	2400
DTN1500	1500	96	3600
DTN2000	2000	96	4800
DTN2500	2500	96	6000
DTN3000	3000	96	7200
Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN10	10	98	28
DTN20	20	98	56
DTN30	30	98	84
DTN40	40	98	112
DTN50	50	98	140
DTN60	60	98	168
DTN80	80	98	152
DTN100	100	98	280
DTN120	120	98	366
DTN150	150	98	420
DTN200	200	98	560
DTN250	250	98	700
DTN300	300	98	840
DTN400	400	98	1120
DTN500	500	98	1400
DTN600	600	98	1680
DTN1000	1000	98	2800
DTN1500	1500	98	4200
DTN2000	2000	98	5600
DTN2500	2500	98	7000
DTN3000	3000	98	8400
Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN10	10	99	30
DTN20	20	99	60
DTN30	30	99	90
DTN40	40	99	120
DTN50	50	99	150
DTN60	60	99	180
DTN80	80	99	240
DTN100	100	99	300
DTN120	120	99	360
DTN150	150	99	450
DTN200	200	99	600
DTN250	250	99	750
DTN300	300	99	900
DTN400	400	99	1200
DTN500	500	99	1500
DTN600	600	99	1800
DTN1000	1000	99	3000
DTN1500	1500	99	4500
DTN2000	2000	99	6000
DTN2500	2500	99	7500
DTN3000	3000	99	9000
Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN5	5	99.5	18
DTN10	10	99.5	35
DTN20	20	99.5	70
DTN30	30	99.5	105
DTN40	40	99.5	140
DTN50	50	99.5	175
DTN60	60	99.5	210
DTN80	80	99.5	280
DTN100	100	99.5	350
DTN120	120	99.5	420
DTN150	150	99.5	525
DTN200	200	99.5	700
DTN250	250	99.5	875
DTN300	300	99.5	1050
DTN400	400	99.5	1400
DTN500	500	99.5	1750
DTN600	600	99.5	2100
DTN1000	1000	99.5	3500
DTN1500	1500	99.5	5250
DTN2000	2000	99.5	7000
DTN2500	2500	99.5	8750
DTN3000	3000	99.5	10500
Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN5	5	99.9	23
DTN10	10	99.9	45
DTN20	20	99.9	90
DTN30	30	99.9	135
DTN40	40	99.9	180
DTN50	50	99.9	175
DTN60	60	99.9	270
DTN80	80	99.9	360
DTN100	100	99.9	450
DTN120	120	99.9	540
DTN150	150	99.9	690
DTN200	200	99.9	900
DTN250	250	99.9	1130
DTN300	300	99.9	1350
DTN400	400	99.9	1800
DTN500	500	99.9	2250
DTN600	600	99.9	2700
DTN1000	1000	99.9	4500
DTN1500	1500	99.9	6750
DTN2000	2000	99.9	9000
Model	Output of nitrogen Nm3/h	Purity(%)	Air Consumption Nm3/h
DTN10	10	99.9995	33
DTN20	20	99.9995	66
DTN30	30	99.9995	100
DTN40	40	99.9995	132
DTN50	50	99.9995	165
DTN80	80	99.9995	265
DTN100	100	99.9995	330
DTN150	150	99.9995	495
DTN200	200	99.9995	660
DTN250	250	99.9995	825
DTN300	300	99.9995	990
DTN400	400	99.9995	1320
DTN500	500	99.9995	1650
DTN600	600	99.9995	1980
DTN1000	1000	99.9995	3300
DTN1500	1500	99.9995	4950
DTN2000	2000	99.9995	6600
DTN2500	2500	99.9995	8250
DTN3000	3000	99.9995	9900

Note: the design benchmark in this form is based on 0.8Mpa(pressure indicated by manometer)material compressed air, 20oC degree
Temperature environment, 0 m elevation, and 80%relative humidity.

DTO type oxygen production equipment

The oxygen making equipment is carefully and precisely developed utilizing PSA Pressure Swing Adsorption theory, using the high grade oxygen zeolite molecular sieve as the adsorbent, and segregate and producing oxygen directly at a ordinary temperature.

Oxygen producing theory

The compressed air absorbs most of the nitrogen. The oxygen flows through absorbing bed, massing on the top as the product, until the

molecular sieve reaches its saturation by absorbing nitrogen. Then, the air goes into the second adsorbent, outputs oxygen, and meanwhile, the first tower disengages under ordinary pressure, releases nitrogen, then the molecular sieve get rebirth. Circling like this, the oxygen is produced continuously.

Technique characteristics:

The compressed air is configured with pretreatment facility such as the freeze-dry machine. The clean compressed air is good for a long using life of the molecular sieve.
Adopting advanced technique of new type of pneumatic stop valve from Germany, the start and closing time is 0.05 seconds, no leak, with a using and switch life of over one million times, which can meet the frequent using requirement of transformation absorption technics, with strong reliability.

Perfect flow design, choice of new type of molecular sieve.

Adopting new technics for oxygen producing, constantly optimizing device design, decreasing energy cost and capital investment.

The whole set device is installed beforehand, which reduces the spot installing time on the spot and insures the rapidity and simplification for the spot installation, and meanwhile ensures a better quality control.

There is a strict and design for the equipment, which can reduce the occupying area.

With a steady performance, controlled by PLC, it can realize the automation for the operation, with very low hitch rate.

The output and purity of the oxygen can be adjusted in a suitable range.

The application and purpose of the oxygen:

.Waste water treatment: Oxygen-enriched aeration of the Activated Sludge, oxygen- added for the pool and ozone sterilization.

.Melting glass: oxygen combustion-supporting, incision, increase the output of glasses, prolong the life of the stove, pulp bleach out and papermaking, chlorine bleaching transforms to oxygen-enriched bleaching.

.Non-ferrous metal smelting: smelt copper, zinc, nickel, and lead, and the like.

.Incise and construct in the field: steel tube and armor plate incise with oxygen-enriched, the mini type oxygen making machine will meet this requirement.

.Oxygen for petrochemical and chemical: Oxygen reaction in the production of petrochemical adopts oxygen-enriched oxidation instead of the air for oxidation reduction reaction, which can increase the reaction speed and the quality of chemical products.

.Mineral treatment: using in production of gold ect., which can increase the distilling rate of the noble metal

.Aquaculture: Oxygen-enriched aeration can increase the dissolvable oxygen in the water, boosting the fish output, supplying oxygen to transportation of the alive fish.

.Drinking water: supplying oxygen to ozone generator, ozone sterilization?

.Medical treatment and health care: In hospital, the oxygen supply, high pressure oxygen cabin, oxygen bar, and oxygen-cured centre, and so on, are centralized offered.

.Steel-making in electric cooker: decarbonization, oxygen combustion-supporting, foam dissolving residue, metallurgy control, and posterior heat additive.

Main technique parameter table

Purity of the oxygen: 90-95%

Output of the oxygen: 3-200Nm3/h

Oxygen pressure: 0.2Mpa(can be increased to the pressure the user needs)

Dew point: =-450C (under normal pressure)

Model	Oxygen output Nm3/h	Oxygen purity±2%	Oxygen pressure MPa	Air consumption Nm3/min(0.6Mpa)
DTO-3	3	93	0.2MPa	0.95
DTO-6	6			1.9
DTO-10	10			2.8
DTO-20	20			5.6
DTO-30	30			8.4
DTO-50	50			14
DTO-80	80			22.4
DTO-100	100			28.4
DTO-150	150			42
DTO-200	200			56

Note: the list data in this form is based on the standard of pressure=0.6Mpa raw material air, the installing field isn’t the explosion prevention area, with a temperature environment=45oC. The setting electric power needs to be the low pressure source 220V/380V,50Hz.

DTC type purify equipment

Main technique parameter list

Gas purity=99.9995%

Oxygen containing=2PPm

CO2 containing =4PPm

Dew point=-60oC

Model	Handle capacity Nm3/h	Output Nm3/h	Power KW	Activator KG
DTC5-10	11	10	1.5	16
DTC5-20	22	20	3.0	32
DTC5-30	33	30	4.5	48
DTC5-40	44	40	6.0	64
DTC5-50	55	50	7.5	80
DTC5-60	66	60	9.0	96
DTC5-80	88	80	12.0	128
DTC5-100	110	100	15.0	160
DTC5-120	132	120	19.0	192
DTC5-150	165	150	22.0	240
DTC5-180	198	180	28.0	289
DTC5-200	220	200	30.0	320
DTC5-230	253	130	36.0	368
DTC5-250	275	250	39.0	400
DTC5-300	330	300	47.0	480
DTC5-330	363	330	49.0	528
DTC5-350	385	350	53.0	560
DTC5-400	440	400	58.0	640
DTC5-450	495	450	67.0	720
DTC5-500	550	500	75.0	800

Note: the listing data in this form is in the temperature environment of 32oC, with a 99.9% purity of imported nitrogen, a temperature of 30oC for the cooling water, adding activator every three months, daily calculated by 24 hours. The rated using power is 55% of the installed capacity.

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