Madung hpaji masa

Cryogenic nbung hpe garan ginhka ai jak ni

 

Cryogenic Nbung hpe garan ginhka ai hka htung (O2, N2, Ar hte n law htum nbung ni)

Nbung garan ai jak (ASP) gaw nbung hpe shi a madung daw ni, laksan hku nna nitrogen hte oxygen, kalang lang argon hte kaga n law htum n-gun n rawng ai nbung ni hpe mung garan ai.

Nbung hpe garan ginhka ai ladat hta grau nna jai lang ai gaw, n-gun n law ai-nbung hpe garan ginhka ai ladat re. Ndai ladat hpe matut mahkai ai bungli ni hta -san seng ai oxygen, nitrogen, argon ni hpe garan ginhka ai hta jai lang ai. Bai nna, neon, krypton, xenon zawn re ai n law htum nbung ni a npawt nhpang langai sha gaw, nbung hpe n yawm htum distillation column lahkawng hku nna distillation galaw ai kaw na pru wa ai.

Nbung garan ai jak (ASP) gaw, bungli galaw ai nbung n-gun law law hpe shapraw lu ai, grau nna, ntsin nbung garan ai jak ni hpe, loi loi hte jai lang mai ai, htaw sa mai ai, shinggyin tawn da mai ai, akyu rawng dik htum ai hte kungkyang dik htum ai jak rai rai nga ai.

 

ASP arung arai garan ginhka ai lam

page-543-315Cryogenic Air Separation Plant

 

ASP a hpawng de ai lam

page-970-573

 

Ammonia hpe hpaw shapraw ai hta Ch4/H2/N2 hpe hka ja ai hku garan ginhka ai

 

Ammonia galaw shapraw ai shara ni hta, raw hydrogen gas hpe CH4 kaw na shapraw ai. H2 gaw N2 hte bai hpaw nna NH3 (ammonia) byin pru wa ai. Hpaga galaw ai shaloi CH4, H2, N2 nbung ni kayau kaya nga ai. Anhte gaw CH4 hpe ntsin shatai nna, synthesis gas kaw na garan ginhka lu na matu, katsi na matu nitrogen jat wa ai ladat hpe lang ga ai. H2 hte N2 hpe garan ginhka na matu pressure swing adsorption unit ni hpe mung lang mai ai. Dai majaw shanhte gaw ammonia hpe bai galaw shapraw na matu reflux galaw lu na matu.

 

page-865-503

 

PSA (VPSA) O2, N2, H2 hpun hte n-gup magap hpe garan ginhka ai lam

 

Psa/vpsa ngu ai ladat hpe:

PSA/VPSA plant hta madung hku nna, hka htung arung arai ni lawm ai hka htung ni, n-gup gas drum(s), shada da matut mahkai ai hka htung ni lawm ai valve ni, hkang zing ai valve ni hte jak rung ni hte hpawn, hka htung hpe hkang na matu hkang zing ai ladat ni lawm ai.

 

PSA/VPSA galaw sa wa na lahkam ni:

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page-1145-558

 

1.PSA/VPSA HPAWNG HPE OKSIJEN SHAPRAW AI LAM

Dai garan gachyan ai lam hta madung hku nna nbung n-gun shayawm ai jak (blower), nbung n-gun shayawm ai jak, nbung n-gun shayawm ai jak, laksan lata la ai n-gun shayawm ai arung arai, valve, hkang zing ai ladat, online oxygen product analyzer hte oxygen compressor mung lawm ai.

  • Product oxygen san seng ai lam hpe 94% du hkra galaw lu ai.

VPSA gaw n-gun n law ai hte molecular sieve n-gun kaba ai akyu ni lawm ai super large pressure adsorbing hte vacuum desorbing galaw ai ladat re. Dai laman, gumhpraw yawng bang ai gaw PSA (sh) kaga ladat ni hta grau yawm ai. Shi a kam hpa mai ai bungli galaw ai lam a matu, ya aten hta n-gun ja ai hte shawng nnan-ra sharawng ai ladat rai nga ai.

 

page-536-367 page-605-434

PSA/VPSA hpun hta na oxygen shapraw ai lam

2.PSA HPU NITROGEN SHAPRAW AI LAM

Nbung kaw na nitrogen hte oxygen hpe garan ginhka ai lam gaw, carbon molecular sieve hte hpring ai hka htung langai mi hta shara la nga ai. Ndai lam gaw, nitrogen molecule ni hta grau nna, carbon molecule sieve a pore structure de oxygen molecule ni grau lawan ai hku garan pru wa ai lam hpe madung tawn ai.

  • Nitrogen san seng ai lam gaw 97-99.9999% rai lu ai.

 

page-576-315

page-960-385

PSA nitrogen galaw shapraw ai ladat a lwi ai lam

 

3.PSA/VPSA HKAWNG HPE HKAWM AI LAM HTE SAN SAN SHAPRAW AI LAM

PSA wan jak a matu madung jai lang ai lam gaw, n-gun n rawng ai wan n-gun ni kaw na hydrogen hpe bai lu la nna jasan jaseng ai lam rai nga ai, ga shadawn, nbung n-gun hpe gram lajang ai, daw mi hpe n-gun jat ai (sh) wan n-gun jat ai lam ni kaw na pru wa ai wan n-gun ni, dai hta n-ga, n-gun n rawng ai nbung ni, ethylene kaw na pru ai -n-gun ni, coke oven wan ni, methanol{ge{2}ga hte ammonia ni hpe mung jai lang ai lam rai nga ai. Dai hydrogen prut prut ai gaw 99.9999 mol-% du hkra san seng ra ai lam shagu hpe hkap la lu ai.

 

Hpaji masa masat masa ni:

Hkamja lam hte seng nna jai lang mai ai arung arai ni: Shingra wan, coke oven wan, nhprang wan -bed methane, shale wan, methane wan, hka wan, wan wut wan, nhprang wan, sau hte wan

  • Atsam: 100 ~ 200,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 5.0 MpaG
  • Hpaga yumga san seng ai lam: H2 99.999 % (V) hta grau kaba ai (sh) maren sha re.
  • ~ 120 % lit la ai lam

page-865-606

page-768-241

PSA/VPSA hkai sun hta hka htung hka htung hka hpe bai lu la nna jasan jaseng ai lam

 

4.PSA/VPSA HPAWNG HPAWNG HPE SHAKAWN AI LAM

 

Hpaji masa masat masa ni:

Hkamja lam hte seng nna jai lang mai ai arung arai ni: Shingra wan, coke oven wan, nhprang wan -bed methane, shale wan, methane wan, hka wan, wan wut wan, nhprang wan, sau hte wan

  • Atsam: 100 ~ 50,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 3.0 MpaG
  • Hpaga yumga san seng ai lam: H2 99.999 % (V) hta grau kaba ai (sh) maren sha re.
  • ~ 120 % lit la ai lam

 

page-865-236

PSA/VPSA HPAWNG HPAWNG SHAGAWN SHAGAWN, SHINGRAN NSA HPAWNG

 

5.(V)PSA CO2 hpe shaw kau ai lam

Hpaji masa masat masa ni:

Hkamja lam hte seng nna jai lang mai ai arung arai ni: Galai shai ai wan, hpaw shapraw ai wan, calcium carbide, lime kiln wan pru ai wan, n-gun n rawng ai wan, wan n-gun, CO2 lawm ai alkali tail wan.

  • N-gun: 200 ~ 200,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 3.0 MpaG
  • Hpaga arai san seng ai lam: CO2 0.1 % (V) hta n law ai (sh) maren sha re.
  • ~ 120 % lit la ai lam

 

page-864-232

PSA CO2 hpe shaw kau ai

 

6.MEMBRANE HPE GARAN SHAGA AI

Hpaji masa masat masa ni:

  • Hpa majaw nga yang, nbung hpe katsi hkra galaw ai, N2 hpe shapraw ai, H2 hpe garan ginhka ai zawn, bungli galaw ai wan ni hpe mung shapraw ai
  • Atsam: 5 ~ 3,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 12.0 MpaG
  • Hpaga arai san seng ai lam: 99.999 % (V) du hkra

 

page-642-553

Membrane hpaji hte Gas hpe garan ginhka ai

 

Katsi kahtet galai shai ai hkap la ai daw (TSA)

 

Variable temperature adsorption ngu ai gaw, nbung laru n bung ai shara ni hta, nbung n-gun n bung ai nbung n-gun ni a matu, garan ginhka ai ladat hpe madung tawn nna, garan ginhka ai ladat langai rai nga ai. Madung tara gaw, n-gun n law ai shara hta target gas components ni hpe hkap la na matu adsorbents ni hpe lang nna, adsorb galaw da ai components ni hpe nbung n-gun kaba ai shara hta katsi ai (sh) bai gram lajang ai gas hpe nbung laru galaw ai hku nna garan kachyan nna hkap la ai, dai hku nna adsorbents ni hpe bai gram lajang ai hte bai jai lang ai lam hpe lu la na matu re.

 

Hpaji masa masat masa ni:

Hkamja lam hte seng nna, shingra wan, shinggyim masha ni galaw shapraw ai wan, nitrogen wan, nbung ni hpe hkyet kau ai (sh) jasan jaseng ai

  • N-gun: 200 ~ 200,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 3.0 MpaG
  • Hpaga lam a san seng ai lam: -70℃du hkra hka lim ai shara , Sulphur rawng ai lam 0.01g/m3 hta n law ai (sh) maren sha re ai.
  • ~ 120 % lit la ai lam

 

page-746-363

 

Hydrogen shapraw ai jak ni

 

H2 Hpaw shapraw ai jak (Wan n-gun hte galaw ai, N-gun hte Methane hpe gram lajang ai, Methanol hpe garan kachyan ai)

 

1.HKANG HPE GALAI SHAPRAW AI HKA (SMR)

Operation manu n law ai, hkam kaja wa na aten kadun ai; PSA desorption gas hpe wan sau hku lang ai majaw, wan sau jai lang ai hpe shayawm ya ai sha n-ga, wan sau pru ai lam hpe mung shayawm ya lu ai.

 

Hpaji masa masat masa ni:

Hkamja lam hte seng nna jai lang mai ai arung arai ni: Shingra wan, naphtha, LPG, hydrocarbon n-gun dat lawm ai hka ja ai wan sau

  • Atsam: 100 ~ 100,000 Nm3/h
  • N-gun: 0.5 ~ 3.0 MpaG
  • Hpaga yumga san seng ai lam: H2 99.999% (V) hta grau kaba ai (sh) maren sha re.

page-635-374

page-1030-585

N-gun n rawng ai hka (NG etc.) N-gun hpe bai gram lajang ai hka (SMR)

page-434-267
page-429-263
page-436-268
page-436-268

Hka htung Methane hpe gram lajang ai hydrogen– 3D hkrang & skid shawng-hpan shapraw ai

 

2.HYDROGEN SHAPRAW NA LAM METHANOL HPE HPAWNG AI

Ndai ladat hta, shim lum ai shara kaw na lu la ai methanol hte hka hpe n-gun n rawng ai hka hpe raw material hku jai lang ai. 220-280℃hta, shanhte gaw laksan n-gun dat langai mi hta galai shai ai gas lawm ai madung hydrogen hte carbon dioxide de n-gun dat hku nna galai shai mat wa ai. Npawt tara gaw lawu na hte maren rai nga ai.

Madung bai htang ai lam: CH3OH{1}}CO{2}}H2 ;△H{4}} KJ/mol

CO+H2O =CO{3}}H2 ;△H{5}} KJ/mol

Yawng hpe mahtai jaw ai: CH3OH+H2O{3}}CO{4}}H2 ;△H{6}} KJ/mol

Hpa majaw nga yang, n kaja ai lam ni: 2CH3OH{2}}H2O; KJ/mol

CO+3H2=CH4+H2O hpe n-gun jaw ai; KJ/mol

Lahta na reaction hku nna katsi mat nna hka lim mat ai hpang byin pru wa ai converted gas a composition gaw 100 rai nga ai.

H2 73~74%

CO2 23~24.5%

CO ~1.0%

CH3OH 300ppm

H2O n-gun

Dai galai shai mat ai gas hpe loi loi hte garan nna, pressure swing adsorption zawn re ai hpaji masa ni hpe jai lang nna, san seng ai hydrogen de shaw la mai ai.

Ndai process hpaji gaw kungkyang ai, galaw na matu loi ai, bungli galaw ai hta ngang grin ai, n san seng ai-n ​​lawm ai.

 

Hpaji masa masat masa ni:

Hkamja lam hte seng nna jai lang mai ai arung arai ni: Shingra wan, naphtha, LPG, hydrocarbon n-gun dat lawm ai hka ja ai wan sau

  • N-gun: 20~10,000 Nm3/h
  • N-gun: 0.5 ~ 3.0 MpaG
  • Hpaga yumga san seng ai: H2 du hkra 99.999% (V)

 

Process hpaji masa a arawn alai:

1. Methanol steam hpe garan nna, lahkam mi hta sha, ap nawng da ai catalyst ntsa hta galai shai kau ai.

2. Pressurization operation hpe jai lang ai hku nna, byin pru wa ai galai shai mat ai gas hpe grau nna n-gun n jaw ra ai sha, pressure swing adsorption garan ginhka ai jak de hkrak sha sa ya lu ai majaw, n-gun jai lang ai lam hpe shayawm ya lu ai.

3. Electrolysis hte shingdaw yu yang, wan n-gun lang ai lam 90% jan yawm mat sai, galaw shapraw ai manu hpe 40-50% shayawm lu sai, hydrogen san seng ai lam mung grai law ai. Coal gasification hte shingdaw yu yang, ndai process arung arai gaw asan sha, galaw na matu loi ai hte ngang grin ai. Coal gasification galaw ai hta raw material manu loi mi shayawm ai raitim, aten galu galaw ra ai, gumhpraw law law bang ra ai, n san seng ai lam law law nga ai, n san seng ai lam ni law law nga ai, desulfurization hte san seng ai lam ni hpe galaw ra ai, dai gaw kaji kaba ai shara ni a matu n htap htuk ai.

4. Specialized catalysts ni gaw, shamu shamawt ai lam grai law ai, lata la mai ai lam kaja ai, bungli galaw ai aten hta n-gun n law ai, aten galu galaw lu ai atsam ni nga ai.

5. Thermal oil hpe circulating heating carrier hku jai lang ai gaw, galaw sa wa ai lam hta ra kadawn ai lam ni hpe hkan sa lu ai, gumhpraw n law ai, n-gun n law ai, bungli galaw ai manu hpe mung shayawm lu ai.

page-863-588

3.HKA ELECTROLYSIS H2 SHAPRAW AI

Hpaji masa masat masa ni:

N-gun: Compressor n lawm ai sha 3.0 MpaG du hkra

Hpaga yumga san seng ai: H2 du hkra 99.99% (V)

Rated DC n-gun lang ai: 4.8 kWh/Nm3 H2 hta n law ai (sh) maren sha re.

 

page-688-332

Hka hpe wan n-gun hte galaw ai H2 prat

 

4.DAWM OXIDATION H2 SHAPRAW AI

Hpaji masa masat masa ni:

  • Laksan jai lang mai ai arung arai ni: Shingra wan, Naphtha; Wan sau,Vacuum ngam ai, Wan sau coke, Nhprang wan sau.
  • N-gun: 4,000-95,000 Nm3/h
  • N-gun: 2.0 - 8.7 MPa(G)
  • Product san seng ai lam: H .2+CO≈34% - 42%(V)(san seng ai O hpe lang yang2lusha gas hku nna, H .2+CO≈90% - 98%)

 

Ladat npawt tara:

Dai shawng nnan katsi mat sai raw hte nbung hpe gasifier de sa dat ai. Bai nna, n-gun ja ai (1300℃- 1500℃C daram) hte n-gun ja ai (3-8 MPa) hta daw mi oxidation byin pru wa ai majaw, n-gun n law ai masa hta hydrocarbons ni hpe oxygen hte n hkum tsup ai hku wan hkru shangun ai.

Madung bai htang ai lam: CnHm + (n/2) O2 → nCO + (m/2) H2

 

Hpaji masa hta akyu nga ai:

1. N-gun n law ai shingra wan hte n-gun n law ai sau zawn re ai n-gun n law ai arung arai ni hpe mung galaw lu ai, manu n dan ai n-gun n law ai sau, vacuum residue, petroleum coke, nhprang wan sau ni hpe pyi galaw lu ai.

2. Reaction hkum nan gaw katsi ai hpe shapraw ya nna shinggan kaw na katsi ai hpe n ra ai majaw, n-gun hpe grai jai lang lu ai.

3.Dai byin pru wa ai n-gun dat hpe hydrogen galaw shapraw na matu sha n-ga, ammonia n-gun dat, methanol n-gun dat, Fischer Tropsch n-gun dat zawn re ai tsi mawan ni hpe galaw na matu raw material gas hku nna mung grai htuk manu nga ai.

 

page-634-445

 

Sau htu shara hte seng ai wan sau galaw shapraw ai rung ni

 

Sau htu ai shara ni hta lawm ai Associated gas ngu ai gaw, sau shaw ai shaloi sung ai shara ni hta lwi mat wa ai shingra gas hpe tsun mayu ai rai nna, dai hpe hka htung npawt kaw shapraw ngut ai hpang, bai galaw ra ai. Associated gas hte crude oil hpe rau sha shaw la ai rai nna, dai ni hpe jai lang na matu, n-gun dat ai lam ni hpe galaw ra ai.

Dai lam hta madung hku nna .

Hka n-gun yawm mat ai hte n-gun yawm mat ai

Dai hte seng ai gas hta hka hte hydrogen sulfide law law lawm ai majaw, n-gun galai shai ai hka htung (sh) hka htung hka htung ladat ni hte tsi lajang ra ai. Ndai lam hpe hka n-gun yawm mat ai hte hka n-gun yawm mat ai ngu nna tsun shaga ma ai. Ndai ladat gaw, dai hte seng ai gas kaw na hka hte hydrogen sulfide hpe shapraw kau lu nna, dai gas hpe grau kaja hkra galaw ya lu ai.

01

Galai shai ai n-gun hte n-gun jat ai lam

Sau htu ai shara ni hta lawm ai gas ni a majaw byin pru wa ai pressure n law ai majaw, htaw sa na matu pressure galaw ra ai. Dai n-gun dat hpe n-gun dat shapraw ai lam hpe n-gun dat dat ai jak ni hpe lang nna galaw mai ai, law malawng gaw centrifugal n-gun dat dat ai jak hte screw n-gun dat dat ai jak ni hpe lang nna galaw mai ai.

02

Garan ginhka ai lam hte hka lim ai lam

Hkamja lam hte seng nna, htaw sa ai aten hta, dai hte seng ai wan gaw hka zawn byin wa chye ai majaw, dai hte seng ai wan hpe garan nna hka byin hkra galaw ra ai. Hkrang shapraw ai lam hte hka garan ai lam hpe three-phase garan ginhka ai jak, condenser, hka hpe rim la ai hka htung ni zawn re ai arung arai ni hpe lang nna galaw mai ai.

03

Hkamja lam hte seng ai pipeline ni hpe hparan ai lam

Sau htu ai shara kaw na matut mahkai ai gas hpe htaw sa ai pipeline ni hta, n-gun ja ai hte n-gun n rawng ai hpe makawp maga ai tsi lajang ra ai. Thickening galaw ai shaloi, n-gang pipe ni hpe lang nna, makawp maga na matu anti-n-gun n-rawng ai layer ni hpe bang nna galaw ai rai nna, n-gun n-rawng ai hpe pat shingdang na matu, n-gun n-rawng ai shingnip ni hte insulation material ni hpe lang nna, pipe ni hpe n-gun n-rawng hkra galaw ai.

04

Tsun ga nga yang, sau htu shapraw ai hta jat bang ai arung arai langai hku nna, sau htu ai shara hte seng ai wan sau hpe jai lang na matu, ladat law law hpe lai di ra ai. Hka n-gun yawm mat ai hte n-gun yawm mat ai, n-gun jat ai, hka n-gun jat ai, pipeline hpe jasan jaseng ai, jai lang ai hpaji masa ni hku nna, sau htu ai shara hte seng ai wan hpe grau nna jai lang lu nna, grup yin awu asin byin ai lam hpe mung shayawm lu ai.

 

Hpaji masa masat masa ni:

  • N-gun: 200 ~ 200,000 Nm3/h
  • N-gun: Kaja ai n-gun ~ 3.0 MpaG
  • Hpaga lam a san seng ai lam: -70℃du hkra hka lim ai shara , Sulphur rawng ai lam 0.01g/m3 hta n law ai (sh) maren sha re ai.
  • ~ 120 % lit la ai lam

page-666-607

 

Shingra wan sau hpe galaw shapraw ai hte hka ja ai jak ni

 

Ladat ginra:

  • Shingra wan hpe ntsin shatai hpaji
  • CBM hka ntsin hte garan ginhka ai hpaji masa
  • Coke-oven gas hpe LNG de cryogenic hku garan ginhka ai hpaji masa
  • Biomass marsh gas hpe LNG de hka lim ai hte garan ginhka ai hpaji masa
  • CH4 hpe nhprang wan sau methanol kaw na LNG de cryogenic hku garan ginhka ai hpaji masa
  • Ethylene glycol hta CO/H2 hpe garan ginhka ai hpaji masa
  • H2 hpe garan ginhka nna san seng hkra galaw ai hpaji masa
  • BOG hpe bai-hka ntsin shatai ai ladat
  • Ammonia n-gup n-gu hta na CH4 hpe LNG de cryogenic hku garan ginhka ai
  • Cryogenic wan sau jak rai ni

page-642-376

NATURAL GAS HPAJI HPAWNG & HKA CHYUM AI HPAWNG

 

SHINGRA GAS HKA CHYUM AI LAM

page-864-543

 

page-614-408

 

LNG katsi ai sumpu

MTO Nhprang wan sau kaw nna olefin katsi ai sumpu

Paraffin hpe olefin katsi ai sumpu de hka n-gun yawm mat hkra galaw ai

Hka nitrogen kashin ai katsi ai sumpu

page-305-469

 

Cryogenic wan sau tsi jak ni

 

Hkamja lam hte shimlam hparan ladat ni

 

page-946-468

Network kaba hkrang shapraw ai

page-429-259

Tinang hkrai hkang ai 

page-560-419

Tinang hkrai hkang ai ladat

 

Langai hkrai arung arai ni

 

page-600-450
Tower arung arai ni hte kata lam ni
page-600-450
Langai hte langai bai nhtang wa ai compressor ni
page-600-450
Adsorbent hte catalyst ni
page-600-450
Program galaw mai ai hkang ai valve ni
page-600-450
Gas amyu shagu, ntsin & cryogenic ntsin tank ni

Bungli masing hpe ga sadi jaw ai

 

page-484-484

Sau & wan sau jak rung ni

Sau hte wan sau hpaji hparat bungli galaw ai hta, EPC (Engineering General Contracting) masa hpe hkan sa ai rai nna, bungli galaw ai wa gaw, bungli masing hpe madu wa hpang de ap ya ai aten du hkra, hkrang shapraw ai, mari la ai, gawgap ai, bungli galaw hpang na lit nga ai. Ndai masa hta, bungli masing hpe atsawm sha galaw lu na matu, bungli masing hpe hkrang shapraw ai kaw nna bungli galaw ai du hkra, bungli masing yawng hpe bungli galaw ai ni gaw ngut kre hkra galaw ra ai. Dai hta n-ga, bungli masing a laksan ra kadawn ai lam ni hte arawn alai ni hpe madung tawn nna lata la ai Design Procurement Gawgap (PC) hte Design Procurement (EP) hkrang masa ni nga ai.

page-490-490

Chemical hte n-gun ja ai tsi mawan ni hpe galaw ai

Ndai company gaw, hpaji hparat hte seng nna, hpaji hparat hte seng nna, hpaji hparat hpan amyu myu hta shang lawm nga ai rai nna, dai hta, shinggyim masha ni a ammonia, methanol, urea, lime nitrogen, thiourea, carbon black ni hpe galaw shapraw ai hpaji masa hte jai lang ai lam ni lawm ai.

page-600-600

Hka jasan jaseng ai hka htung ni

Hka hpe jasan jaseng ai hpaji gaw, bungli galaw ai shara ni hta hka n san seng ai hpe jasan jaseng ai hta ahkyak ai daw langai rai nna, shi a madung yaw shada ai lam gaw, hka hpe hka shapraw ai madang (sh) bai jai lang ra ai lam ni hpe hkan sa lu na matu, hpaji masa amyu myu hku nna hka n san seng ai hpe sung sung jasan jaseng lu na matu re. Tatut jai lang ai lam hta, n-gun rawng ai tsi lajang ai lam ni hta, hka n-gun rawng ai, ozone oxidation, catalysis, adsorption, etc.