Raw Khoom Rau Haus Dej Qib Anionic Cation Dej Kho Cov Tshuaj Polyacrylamide Pam
Polyacrylamides yog cais raws li Tsis-ionic (NPAM), cationic (CPAM), anionic (APAM) thiab Amphionic (Amphionic PAM). Cov anionic polyacrylamide feem ntau yog siv los ua cov av hloov kho rau thaj av cog thiab ua tus neeg saib xyuas qhov chaw yaig. Cov tshuaj ionic xws li ntsev ua rau cov polyacrylamide tso nws cov khoom nqus dej.
| Khoom npe | Molecular Luj |
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Cov ntsiab lus ruaj khov | Residual monomer feem pua | Qhov tshwm sim | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
800-2000Million |
|
|
|
Dawb hmoov | ||||||||
| CPAM | 800-1200Million |
|
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0.05 | Dawb hmoov | ||||||||
|
200-600Million | Tsawg dua los yog sib npaug 3 |
|
0.05 | Dawb hmoov |
Flocculation nyhuv ntawm PAM cov khoom hauv kev kho dej khib nyiab
Raws li cov khoom ntawm kev tshem tawm cov teeb meem, concentration thiab flocculation kev ua tau zoo ntawm polyacrylamide, nag lossis daus tuaj yeem muab faib ua: ntuj nag lossis daus, flocculation nag lossis daus hauv cheeb tsam. Qhov concentration ntawm cov khoom raug tshem tawm hauv cheeb tsam nag lossis daus yog siab dua (ntau dua 5000mg / L), thiab kev sib haum xeeb ntawm cov khoom raug cuam tshuam los ntawm lwm cov khoom nyob ib puag ncig, thiab cov txheeb ze ntawm cov khoom tsis hloov pauv, ua rau tag nrho cov dab dej, thiab muaj qhov tseeb. av nkos-dej interface ntawm lawv thiab cov dej ntshiab. Regional sedimentation tshwm sim nyob rau hauv ob qho tib si theem nrab sedimentation tank thiab sludge thickening tank.
Cov chaw thov
1. Anionic polyacrylamide (APAM)suav nrog: ultra siab molecular hnyav (tshaj 25 lab), siab molecular hnyav (txog 20 lab), nruab nrab molecular hnyav (kwv yees li 16 lab), Cov ntsiab lus khoom ntau tshaj 89 feem puayog cov dej-soluble polymer uas feem ntau siv hauv kev kho dej, papermaking, ntxhia ua, thiab lwm yam kev siv hauv kev lag luam. Nws yog ib hom polyacrylamide uas muaj cov pab pawg ua haujlwm tsis zoo, xws li carboxylate lossis sulfonate, txuas rau cov pob txha polymer.
APAM feem ntau yog siv rau hauv cov txheej txheem kho dej raws li flocculant, uas pab tshem tawm cov khib nyiab thiab lwm yam impurities los ntawm dej. Nws ua haujlwm los ntawm kev tsim tus choj ntawm cov khoom hauv dej, ua rau lawv sib sau ua ke thiab nyob hauv dej. APAM kuj tseem siv rau hauv cov txheej txheem papermaking los txhim kho daim ntawv lub zog thiab txhim kho cov kua dej thiab khaws cia.
Ntxiv rau nws cov ntawv thov kev lag luam, APAM kuj tau siv rau hauv kev ua liaj ua teb ua cov av txias thiab ua ib qho kev txo cov av yaig. Txawm li cas los xij, kev txhawj xeeb tau tshwm sim txog qhov muaj feem cuam tshuam ib puag ncig ntawm APAM, tshwj xeeb yog nws cov teebmeem ntawm cov kab mob hauv av thiab cov kab mob hauv dej. Yog li ntawd, nws txoj kev siv yog tswj nyob rau hauv ntau lub teb chaws.
Zuag qhia tag nrho, APAM yog ib qho siv dav thiab ntau yam polymer nrog ntau yam kev siv hauv ntau yam lag luam. Txawm li cas los xij, nws qhov kev cuam tshuam ib puag ncig yuav tsum tau ua tib zoo xav ua ntej nws siv.
Feem ntau, APAM feem ntau siv rau hauv cov roj av vim nws cov txiaj ntsig zoo li flocculant thiab nws lub peev xwm los txhim kho rheological zog ntawm cov kua dej drilling. Txawm li cas los xij, CPAM kuj tseem tuaj yeem ua tau zoo hauv qee cov ntawv thov thiab tej zaum yuav nyiam nyob rau qee kis. Qhov kev xaiv ntawm hom polyacrylamide siv yog nyob ntawm qhov kev xav tau tshwj xeeb thiab cov xwm txheej ntawm kev lag luam roj.
2. Nonionic Polyacrylamide (NPAM) suav nrog: qhov nruab nrab molecular hnyav (tshaj 15 lab), qhov hnyav molecular (mus txog 8 lab), cov ntsiab lus ntawm cov khoom ntau tshaj 89 feem puasawv cev rau nonionic polyacrylamide, uas yog ib hom dej-soluble polymer uas zoo ib yam li anionic polyacrylamide (APAM) tab sis tsis muaj cov pab pawg ua haujlwm. Nws yog tsim los ntawm polymerization ntawm acrylamide monomers nyob rau hauv lub xub ntiag ntawm ib tug nonionic surfactant.
NPAM muaj qhov hnyav molecular thiab tuaj yeem tsim cov saw loj molecular, uas tso cai rau nws ua haujlwm raws li flocculant hauv kev kho dej khib nyiab, papermaking, thiab lwm yam kev lag luam. NPAM tshwj xeeb tshaj yog siv los kho cov dej khib nyiab uas muaj cov organic thiab inorganic hais, nrog rau cov roj thiab cov rog.
Tsis zoo li APAM, NPAM tsis yog qhov tsis zoo, yog li nws tsis adsorb zoo li mus rau saum npoo ntawm cov khoom. Txawm li cas los xij, nws tseem tuaj yeem tsim cov txuas txuas ntawm cov khoom, ua rau tsim cov flocs uas tawm ntawm cov tshuaj.
NPAM feem ntau suav hais tias muaj kev nyab xeeb rau kev siv hauv kev lag luam thiab ib puag ncig, tab sis zoo li APAM, nws yuav tsum tau ua tib zoo saib xyuas kom tsis txhob nqus tau, noj, lossis sib cuag nrog daim tawv nqaij lossis qhov muag. Kev raug rau NPAM ntev ntev yuav ua rau muaj teeb meem ua pa lossis ua rau tawv nqaij.
Zuag qhia tag nrho, NPAM yog ib qho tseem ceeb polymer rau flocculation thiab sedimentation nyob rau hauv ntau yam kev lag luam txheej txheem, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov uas anionic polymers yuav tsis haum vim lawv cov xwm.
3. Cationic polyacrylamide (CPAM)yog ib qho dej-soluble polymer uas yog dav siv los ua flocculant, coagulant, thiab thickener nyob rau hauv ntau yam lag luam, xws li kev kho dej khib nyiab, papermaking, textile, thiab mining. CPAM yog ib hom polyacrylamide uas muaj cov pab pawg ua haujlwm zoo, xws li amino lossis quaternary ammonium, uas ua rau nws muaj txiaj ntsig zoo hauv kev khi nrog cov khoom tsis zoo, xws li av nplaum, silt, thiab cov organic teeb meem hauv dej.
Hauv kev kho dej khib nyiab, CPAM yog siv los ua thawj coagulant tshem tawm cov khib nyiab, colloids, thiab cov organic teeb meem los ntawm cov dej khib nyiab. CPAM kuj tseem siv tau los ua flocculant los sau cov coagulated particles mus rau hauv cov khoom loj, uas tuaj yeem yooj yim sib cais ntawm cov dej los ntawm sedimentation, flotation, los yog pom.
Hauv papermaking, CPAM tau ntxiv rau hauv cov ntaub so ntswg txhawm rau txhim kho kev tuav thiab tso dej ntawm cov fibers, uas tuaj yeem ua rau daim ntawv muaj zog thiab txo cov nqi tsim khoom. CPAM kuj tseem siv tau los ua tus neeg sawv cev sizing los txhim kho cov dej tsis kam ntawm daim ntawv.
Hauv kev lag luam textile thiab mining, CPAM yog siv los ua cov thickener los ua kom cov viscosity ntawm cov kua, uas tuaj yeem txhim kho cov khoom zoo thiab txo cov nqi tsim khoom.
CPAM feem ntau suav hais tias muaj kev nyab xeeb rau kev siv hauv cov lag luam no, tab sis nws yuav tsum tau ua tib zoo saib xyuas vim tias nws yuav ua rau tawv nqaij khaus lossis teeb meem ua pa yog tias nws nkag mus rau ntawm daim tawv nqaij lossis nqus tau pa.
Polyacrylamide ua haujlwm li cas hauv Oil Field?
Polyacrylamide (PAM) yog cov khoom siv dej-soluble polymer uas muaj ntau yam kev siv hauv kev lag luam roj thiab roj. Hauv cov roj av, PAM yog siv los ua cov kua dej ntxiv, kev hloov kho viscosity, kev sib txhuam reducer, thiab flocculant.
Drilling fluid additive: PAM yog ntxiv rau cov kua dej drilling kom viscosity thiab stability ntawm cov dej drilling. Nws pab tiv thaiv kom tsis txhob poob ntawm cov dej drilling rau hauv cov txheej txheem ntxeem tau thiab tseem pab nqa cov txiav mus rau saum npoo.
Viscosity modifier: PAM tuaj yeem hloov kho cov viscosity ntawm cov roj thiab cov kua dej. Thaum ntxiv rau cov kua roj, nws tuaj yeem ua kom cov viscosity thiab muab lubricity zoo dua. Thaum ntxiv rau cov kua dej, nws tuaj yeem txo cov viscosity thiab txhim kho cov kua dej ntws.
Kev sib txhuam reducer: PAM tuaj yeem txo qhov kev sib txhuam ntawm cov dej drilling thiab cov phab ntsa borehole. Qhov no yuav pab txo qis lub siab uas yuav tsum tau ua kom cov dej ntws tawm, uas tuaj yeem ua rau txo qis qhov hnav thiab tsim kua muag ntawm cov khoom siv drilling.
Flocculant: PAM kuj yog siv los ua flocculant hauv cov roj av. Nws pab cais cov khib nyiab ntawm cov kua thiab tuaj yeem siv los tshem tawm cov khib nyiab los ntawm cov dej tsim. Qhov no tuaj yeem pab txo qis kev cuam tshuam ib puag ncig ntawm kev tsim roj thiab ua kom cov dej tsim tau zoo rau kev rov siv dua.
Hauv cov ntsiab lus, PAM muaj ntau yam kev siv hauv cov roj av thiab tuaj yeem pab txhim kho kev ua tau zoo thiab ib puag ncig kev ruaj ntseg ntawm cov roj thiab roj ntau lawm.
