Sellutehtaiden kemikaalikierron näytteet
Kymen Ympäristölaboratorion Kemikaalikierron ja prosessikemian laboratorion juuret ovat Kotkan Karhulassa, missä tutkittiin metsäteollisuuden näytteitä ja kehitettiin niille analyysimenetelmiä 1980-luvulta lähtien. Karhulan laboratorio oli ensin Ahlströmin omistuksessa ja siirtyi sitten Foster Wheelerin ja Andritzin kautta lopulta osaksi KCL Kymen Laboratorio Oy:tä vuonna 2008, jolloin toiminnot siirrettiin Karhulasta Kouvolan Kuusankoskelle. Toiminta on jatkunut Kuusankoskella siitä lähtien ja toimii nykyään Kymen Ympäristölaboratorion nimen alla.
Tutkimme laboratoriossamme mm.
- Musta-, viher- ja valkolipeänäytteet
- Sulanäytteet
- Meesanäytteet
- Carry-over-näytteet
- Kerrostumanäytteet
Kemikaalikierron analyysit:
| Black Liquor | ||
| Black Liquor (weak / half strong) | ||
| Ca, soluble | SCAN-N 38:01 modif. | |
| Carbonate | SCAN-N 32:98 | |
| Dry matter content | SCAN-N 22:77 | |
| Fibre content | SCAN-N 22:96 | |
| Residual alkali | SCAN-N 33:94 | |
| Sulphate | KCL 71:81 | |
| Sulphide | SCAN-N 31:94 | |
| Tall oil (soap) | KCL 207:82 | |
| Ca, total | SCAN-N 38:01 modif. | |
| Tall oil (soap) | KCL 207:82 | |
| Oxalate | Subcontracting (SCAN-N 39:05 modif.) | |
Volatile organic componds | Subcontracting (GC) | |
| Turpentine components | Subcontracting (GC) | |
| Ca deactivation | Subcontracting | |
| LHT | Subcontracting | |
| Black Liquor as Fired | ||
| Dry matter content | SCAN-N 22:77 | |
| Chlorine | Internal (ASTM D 4208) | |
| Na and K | Andritz int. method (ashing, acid diss.) | |
| Sulfur, total | Internal (LECO SC-444) | |
| Na and K | SCAN-N 37:98 | |
| Viscosity | Subcontracting | |
| BPR | Subcontracting | |
| Virgin Black Liquor | ||
| Dry matter content | SCAN-N 22:77 | |
| Chlorine | Internal (ASTM D 4208) | |
| Na and K | Andritz int. method (ashing, acid diss.) | |
| Sulfur, total | Internal (LECO) | |
| Heat value | Internal | |
| Na and K | SCAN-N 37:98 | |
| Ash (700 °C) | KCL 59:84 | |
| CHN (carbon, hydrogen, nitrogen) | Subcontracting (ASTM D 5373, LECO) | |
| Ca, Mg, Fe, Mn, Al and Si | Subcontracting (SCAN-N 38:01 modif.) | |
| Other analyses for Black Liquors | ||
| Ratio of inorganic/organic matter | KCL 61:83 | |
| Nitrogen | Internal (Kjeldahl) | |
| Sulphite + tiosulphate | KCL 70:83 | |
| Al, Mg, Fe | Subcontracting (SCAN-N 38:01 modif.) | |
| Si | Subcontracting (SCAN-N 38:01 modif.) | |
| White and Green Liquor | ||
| ABC-titration (total, active and effective alkali) | SCAN-N 30:85 | |
| Insoluble matter (dregs) | TAPPI T692 om -04 mod. | |
| Acid insoluble (in insol.matter) | Internal | |
| Sulphide (S2-) | SCAN-N 31:94 | |
| Sulphur, total | SCAN-N 5:63 and SCAN-N 6:64 | |
| Sulphate | SCAN-N 6:64 | |
| Sulphite + tiosulphate | KCL 70:83 | |
| Chlorine, total | SCAN-N 4:78 | |
| Carbonate | SCAN-N 32:98 | |
| Na and K | Internal | |
| Ca, Mg, Fe, Mn, Al and Si | Subcontracting (ICP) | |
| Oxidized white liquor | ||
| Residual Na2S | SCAN-N 34:96 | |
| Sulphate | SCAN-N 6:64 | |
| Sulphite and tiosulphate | KCL 70:83 modif. | |
| Condensate | ||
| Clean samples (no pretreatment needed) | ||
| CODCr | SFS 5504 | |
| Na | SFS 3017 | |
| Methanol, Ethanol | Subcontracting (GC) | |
| Highly odorous samples | ||
| Conductivity | SFS-EN 27888 | |
| Methanol, Ethanol | Subcontracting (GC) | |
| Na | Subcontracting | |
| CODCr | Subcontracting | |
| TRS | Subcontracting | |
| Solid recovery samples (soap, lime, green liquor dregs, scalings) | ||
| Carbonate | SCAN-N 32:98, modif. | |
| Ash (575 °C) | ISO 1762:01, modif. | |
| Calcium in soap | Subcontracting (wet digestion, FAAS) | |
| Oxalate | Subcontracting (SCAN-N 39:05 modif.) | |
| Esp Ash | ||
| Carbonate | SCAN-N 32:98 | |
| Chloride | Internal (HNO3 dissolvation, titr.) | |
| Na and K | Internal (HNO3 dissolvation, AAS) | |
| Sulphate | KCL 71:81 (modif.) | |
| Smelt | ||
| Sulphide (inc. smelt dissolving) | SCAN-N 31:94 | |
| Sulphur, total | SCAN-N 5:63 and SCAN-N 6:64 | |
| Sulphate | SCAN-N 6:64 | |
| Nitrogen | Internal (Kjeldahl) | |
| Green Liquor Dregs | ||
| Dry matter content | Tappi T692 om-04 mod. | |
| Lime mud | ||
| Dry matter contet | SCAN N 23:78 | |
| Carbon / Carbonate | Internal (LECO) | |
| Na, water soluble | SCAN N 27-81 | |
| Na, total | Internal (FAAS) | |
| Free CaO | SCAN N 25:81 | |
| XRF-analysis | Subcontracting | |
| XRF-analysis preatment | Subcontracting | |
| Mg, Fe, Mn, Al, Si | Subcontracting (ICP) | |
| Sulfur, total | Subcontracting | |
| Phosphorus | Subcontracting (ICP) | |
| Lime mud content | Internal | |
| Spesific filtration resistanse | Internal | |
| Particle size distribution | Subcontracting | |
| Burnt Lime | ||
| Caustization power | Internal | |
| Carbon / carbonate | Internal | |
| XRF-analysis | Subcontracting | |
| XRF-analysis preatment | Subcontracting | |
| Ignition loss ( 1000 °C) | Internal | |
| Pretreatment (Flux) | Internal | |
| Reactivity test | Internal | |
| Phosphorus | Subcontracting (ICP) | |
| Lime Stone | ||
| Particle size distribution | Mechanical sieving | |
| Carbon / Carbonate (Leco) | Internal | |
| Impurities / XRF-analysis | Subcontracting | |