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We use air as raw material and carbon molecular sieve (CMS) as absorbent. Under A certain pressure, the amount of oxygen absorbed by CMS in the air is much greater than the amount of nitrogen absorbed by CMS. Therefore, the automatic pneumatic valve controls the switch to make tower A and tower B work alternately to realize pressure adsorption and decompression desorption, and complete the separation of adsorbent. Oxygen and nitrogen and achieve the target purity of nitrogen.
The SPNM 30-3000 series is the superior modular nitrogen generator of Since Gas, with excellent performance and comprehensive supply range. It adopts pressure swing adsorption technology (PSA) to obtain high purity nitrogen at normal temperature, the purity can reach 95% to 99.99%. Suitable for oil tanker, LPG/LNG tanker, dual fuel tanker, refueling barge, PSV/FPSO vessel, VLOC ship, offshore platform, ballast water treatment system and other ships. With more than 20 years of technical background and long-term market work in the gas industry, Since Gas has successively obtained the CCS Classification Society factory certification, BV Classification Society factory certification, ABS Classification Society Marine nitrogen system certification, and has provided gas generation solutions for CNOOC, Hudongzhonghua and other leading customers in the shipping industry, with a cumulative service of more than 500 ships.
Compressed air is used as raw material to enter one or more membrane components, each of which is composed of millions of hollow fibers, and various gases in the air (about 78% nitrogen, 21% oxygen, and 1% argon) are filtered out through the membrane wall with different penetrations, resulting in dry nitrogen, which is discharged from the end of the membrane to the gas point.
Ordinary nitrogen (generally 99-99.9% purity) by adding hydrogen or carbon, under the action of a catalyst, with the oxygen in nitrogen to react to produce water or carbon dioxide, carbon monoxide, etc., and then through the post-stage molecular sieve adsorption, the secondary reaction products adsorption. High purity nitrogen is obtained.
Hydrogen production by using methanol reforming. Using a feed of methanol and water, our high efficiency package converts methanol via a catalyst into hydrogen. Using pressure swing adsorption (PSA) we reach a high outlet hydrogen purity >99.995%. Availability of solar power and other renewable electricity sources leads to a low CO2 footprint for green methanol production. Methanol reformer to hydrogen results in a very low price of hydrogen derived from green methanol, and lower cost hydrogen source for hydrogen re-fueling stations. It also can be used as a backup system for a hydrogen generating unit.
The ammonia cracker to hydrogen equipment uses liquid ammonia (with a purity of ≥99.8%) as raw material. It vaporizes liquid ammonia into ammonia gas and enters the decomposition furnace. Under high-temperature conditions, it is cracked into a hydrogen-nitrogen mixed gas of 75% hydrogen and 25% nitrogen under the action of a catalyst. Hydrogen-nitrogen mixed gas can purify hydrogen to 99.9995% through the pressure swing adsorption (PSA) process.
The ammonia dryer skid adopts the adsorption drying process, using the principle that the molecular sieve adsorbed different amounts of water under different temperatures and pressures, and the dry ammonia gas is obtained by working at room temperature and pressure, and then regenerated by heating and atmospheric pressure. The device is composed of two dryers and supporting pneumatic valves and solenoid valves. The two dryers work and regenerate alternately to realize automatic and unmanned control switching.
The PSA hydrogen production machine uses mixed air containing hydrogen (ammonia, methanol reforming, natural gas reforming) as the raw air, uses special molecular sieves, and uses PSA (pressure swing adsorption) principle to produce hydrogen. Due to the different adsorption and diffusion rates of H2 and N2 molecules, the valve is automatically controlled by PLC to ensure pressurized adsorption and reduced pressure regeneration. The complete cycle of this operation results in the separation of hydrogen and hydrogen.
It is mainly equipped with electrolytic water hydrogen production equipment to remove oxygen impurities in hydrogen and adsorb water, which can improve the purity of hydrogen (from 98% to 99.9995%).
The recovery principle of this system comes from waste hydrogen and tail gas hydrogen. First, it is cooled, washed and dedusted, and most of the water in the waste hydrogen is condensed and then enters the Roots fan for pressurization. The waste hydrogen after pressure treatment by the fan enters the hydrogen purification unit or PSA purification unit for secondary treatment, so that the oxygen content and dew point of the gas can be reduced to the production requirements. The purified hydrogen is re-used as feed stock hydrogen.
We are committed to providing customers with full process services. The quality of original spare parts is stable, with excellent performance, reasonable price, and convenient use. Upgrading and renovating services can improve the efficiency of products and eliminate safety hazards of old equipment. Our professional after-sales service team is dedicated to serving you. If you want to learn more about after-sales service information, please call our sales service hotline: 400-0512-448 for consultation.
Using gas separation technology, with air as raw material, the nitrogen and oxygen in the air are separated by the selective adsorption of nitrogen and oxygen by a high efficiency and high selection of solid adsorbent. Zeolite molecular sieve according to the size of the hole inside the crystal of the selective adsorption of molecules, that is, adsorption of a certain size of molecules and the exclusion of larger molecules. In this way, an enriched component of oxygen can be obtained in the gas phase. Pressure swing adsorption method usually uses two towers in parallel, alternating pressure adsorption and decompression regeneration, so as to obtain a continuous flow of oxygen.
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