Industrial ammonia (NH₃) amapangidwa pogwiritsa ntchito ukadaulo wapamwamba woyeretsa komanso makina okhwima owongolera, okhala ndi chiyero chopitilira 99.999% (kalasi ya 5N), kukwaniritsa zofunikira zaukhondo wamafuta m'magawo apamwamba opangira zinthu monga ma semiconductors, mphamvu zatsopano, ndi mankhwala. Zogulitsazo zimagwirizana ndi muyezo wadziko lonse wa GB/T 14601-2021 "Industrial Ammonia" ndi SEMI yapadziko lonse lapansi, ISO ndi zina, ndipo imakhala yokhazikika komanso yotetezeka.

Kodi ntchito ya ammonia ya mafakitale ndi iti?

Pan-semiconductor ndi kupanga zamagetsi

Kupanga kwa chip / gulu: kumagwiritsidwa ntchito popanga filimu ya silicon nitride/gallium nitride yowonda komanso njira zolumikizira kuti zitsimikizire kukonza bwino kwambiri.

Kupanga kwa LED: kumagwiritsidwa ntchito ngati gwero la nayitrogeni kuti apange zigawo za GaN epitaxial kuti apititse patsogolo magwiridwe antchito a zida zotulutsa kuwala.

Mphamvu zatsopano ndi photovoltais

Maselo a Dzuwa: amapanga silicon nitride anti-reflection zigawo mu PECVD ndondomeko kuti apititse patsogolo kusintha kwa photoelectric.

mankhwala pamwamba ndi zitsulo processing

Metal nitriding: kuumitsa kwa zida zamakina kuti zithandizire kukana komanso kutopa.

Kuteteza kuwotcherera: ngati mpweya wochepetsera kuti mupewe kutentha kwambiri kwazitsulo.

Chemical ndi kuteteza chilengedwe

Denitrification ndi kuchepetsa umuna: amagwiritsidwa ntchito pa SCR denitrification m'mafakitale opangira magetsi / mankhwala kuti achepetse mpweya wa nitrogen oxide (NOx).

Kaphatikizidwe ka Chemical: zida zopangira zopangira zopangira mankhwala monga urea ndi nitric acid.

Kafukufuku wa sayansi ndi chithandizo chamankhwala

Kusanthula kwa labotale: kumagwiritsidwa ntchito ngati chonyamulira gasi kapena gasi wamachitidwe pofufuza zakuthupi ndi kaphatikizidwe.

Kuchepetsa kutentha kwapang'onopang'ono: njira yofunika kwambiri pakuchotsa zida zachipatala kuti zitsimikizire chitetezo chosabala.

Ubwino wazinthu: Chiyero mpaka 99.999%+, zonyansa ≤0.1ppm, zoyenera zopangira zopangira zapamwamba; zosinthika zosinthika (silinda / thanki yosungira / galimoto yamatanki), chiphaso chachitetezo chokwanira.

Kodi mitundu itatu ya ammonia ya mafakitale ndi iti?

Industrial grade ammonia

Ntchito: zitsulo nitriding kuumitsa, kaphatikizidwe mankhwala (urea/nitric acid), kuwotcherera chitetezo, chilengedwe denitrification (SCR).

Zofunika: chiyero ≥ 99.9%, kukwaniritsa zosowa zamafakitale, zotsika mtengo.

Electronic grade high chiyero ammonia

Ntchito: tchipisi ta semiconductor (silicon nitride deposition), kukula kwa LED epitaxial, cell photovoltaic cell (PECVD anti-reflection layer).

Zofunika: chiyero ≥ 99.999% (5N kalasi), zonyansa zazikulu (H₂O/O₂) ≤ 0.1ppm, kupewa kuipitsidwa kwatsatanetsatane.

Ammonia yamadzi

Ntchito: kupanga mankhwala aakulu (monga synthetic ammonia), mafakitale firiji machitidwe, chochuluka denitrification wothandizira kupereka.

Mawonekedwe: kusungirako kwamadzimadzi othamanga kwambiri, kuyendetsa bwino kwambiri, koyenera kugwiritsa ntchito zazikulu.

Kodi ammonia wa mafakitale amapangidwa bwanji?

Kaphatikizidwe kazinthu zopangira (makamaka njira ya Haber)

Zopangira: haidrojeni (H₂, kuchokera ku kusintha kwa gasi / electrolysis yamadzi) + nitrogen (N₂, yopangidwa ndi kupatukana kwa mpweya).

Zochita: Zothandizira pachitsulo zimathandizira kaphatikizidwe ka NH₃ pa kutentha kwambiri (400-500 ℃) komanso kuthamanga kwambiri (15-25MPa).

Kuyeretsa gasi

Desulfurization/decarbonization: Chotsani zinyalala monga sulfide ndi CO mu gasi yaiwisi kudzera mu adsorbents (monga activated carbon ndi molecular sieves) kuti mupewe kupha poyizoni.

Kuyeretsa kwa ammonia

Mipikisano siteji kuyenga: Gwiritsani ntchito distillation otsika kutentha (-33 ℃ liquefaction kupatukana) + Terminal kusefera (kuchotsa micron-kakulidwe particles) kuonetsetsa chiyero ≥99.9% (mafakitale kalasi) kapena ≥99.999% (electronic grade).

Kusungirako ndi kulongedza

Gawo la mpweya: Kudzaza mokakamizidwa mu masilinda achitsulo (40L muyezo).

Liquid state: Sungani m'matanki osungiramo kapena magalimoto akasinja pambuyo pothira kutentha pang'ono kuti muthe kuyendetsa bwino.

Kodi ammonia amagawidwa bwanji?

Kugawa ndi mulingo wa chiyero

Industrial grade ammonia

Chiyero: ≥99.9%

Ntchito: kaphatikizidwe mankhwala (urea/nitric asidi), zitsulo nitriding, chilengedwe chitetezo denitrification (SCR), kuwotcherera chitetezo.

Zofunika: zotsika mtengo, zoyenera pazochitika zamakampani.

Electronic grade high chiyero ammonia

Chiyero: ≥99.999% (kalasi ya 5N)

Ntchito: semiconductor woonda film deposition (silicon nitride/gallium nitride), LED epitaxial kukula, photovoltaic cell anti-reflection wosanjikiza (PECVD).

Zowonongeka: zonyansa (H₂O/O₂) ≤0.1ppm, kupeŵa kuipitsidwa kolondola kwa ndondomeko, mtengo wapamwamba.

Kugawa ndi mawonekedwe a thupi

Mafuta ammonia

Kupaka: masilinda achitsulo othamanga kwambiri (monga mabotolo wamba a 40L), osavuta kugwiritsa ntchito pang'ono.

Zochitika: labotale, fakitale yaying'ono, gasi woteteza zida.

Ammonia yamadzimadzi (ammonia yamadzimadzi)

Kusungirako: kutentha kochepa komanso kuthamanga kwamphamvu kwambiri, thanki yosungiramo kapena mayendedwe amagalimoto akasinja.

Zitsanzo: kaphatikizidwe kakang'ono ka mankhwala (monga feteleza), denitrification yamagetsi yamafuta otentha (SCR), makina oziziritsa m'mafakitale.

Amagawidwa ndi malo ogwiritsira ntchito

Chemical ammonia: zida zopangira mankhwala monga synthetic urea ndi nitric acid.

Mpweya wapadera wamagetsi: ammonia wonyezimira kwambiri mu semiconductor, photovoltaic, ndi LED kupanga.

Environmental ammonia: kutentha mphamvu / mankhwala chomera denitrification ndi kuchepetsa umuna (SCR ndondomeko).

Ammonia yachipatala: kutsekereza kutentha pang'ono, ma labotale kusanthula reagents.

Kodi fakitale imatulutsa ammonia bwanji?

Zotulutsa pakupanga ndi kugwiritsa ntchito

Synthetic ammonia chomera: Kukonza zinyalala gasi, zida chisindikizo si zolimba chifukwa kufufuza kutayikira.

Chomera cha Chemical/electronics: Mukamagwiritsa ntchito ammonia popanga nitriding ndi etching, mpweya wotsalira womwe sunagwire ntchito kwathunthu umatulutsidwa.

Kutaya ndi mayendedwe: kutayikira mwangozi chifukwa cha kukalamba kwa akasinja / mapaipi osungira, kulephera kwa ma valve kapena zolakwika zogwirira ntchito.

Njira zowongolera

Kupewa ndi kuwongolera mwaukadaulo: tsatirani njira zotsekera, khazikitsani nsanja ya SCR/adsorption kuti muzitha kuwononga mpweya.

Kuyang'anira kutsata: chowunikira nthawi yeniyeni ya gasi + kuyang'anira kujambula kwa infrared, motsatira zofunikira za "Air Pollution Prevention and Control Law" ndi malamulo ena.

Huazhong Gasi amapereka mkulu-chiyero mafakitale ammonia, njira yopulumutsira mphamvu komanso yopangira bwino, njira zosinthika komanso zosiyanasiyana zoperekera. Zogulitsa zathu zimakwaniritsa miyezo yapadziko lonse lapansi kuti zitsimikizire njira zotetezeka komanso zodalirika zamakhalidwe onse.