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Christina Wedin
Coordinator
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Analysis for process chemicals
Process chemicals coming need to be analyzed, controlled, and classified to determine the necessary actions for potential post-processing.
RISE offer consultation on analysis setups tailored to your production process chemicals. Below are examples of analyses available for process chemicals such as lime, black liquor, soap, tall oil, process water, and methanol. Additionally, we provide a specialized package for assessing incrustation risk.
Wood & Pulp
Black liquor:
Fibre content (total), residual alkali (hydroxide, carbonate), sulphide ion, sulphite ion, sulphate ion, thiosulphate ion, total sulphur, oxalate content, chloride content, metal content, carbohydrates (total, polymeric and free monomers), lignin (total and molecular weight distribution), amount of tall oil, terpenes content, amount of hydroxy acids and volatile acids (subcontractor), dry matter and ash content.
White and green liquor:
Alkali content (total, active and effective), carbonate content, sulphide, sulphite, sulphate, thiosulphate, total sulphur, potassium and sodium content, chloride content and metal content.
Risk for Scale Formations
Anion content, cation demand, carboxylic acid content, uronic acid content, ASA (total), carbohydrates (total), lignin content, amount of optical brightener and starch content.
Process liquors
Process water: anion content, cation requirement, carboxylic acid content, uronic acid content, ASA (total content), carbohydrates (total content), lignin content, amount of optical brightener, starch content, and alkalines.
Black liquor:
Fibre content (total), residual alkali (hydroxide, carbonate), sulphide ion, sulphite ion, sulphate ion, thiosulphate ion, total sulphur, oxalate content, chloride content, metal content, carbohydrates (total, polymeric and free monomers), lignin (total and molecular weight distribution), amount of tall oil, terpenes content, amount of hydroxy acids and volatile acids (subcontractor), dry matter and ash content.
White and green liquor:
Alkali content (total, active and effective), carbonate content, sulphide, sulphite, sulphate, thiosulphate, total sulphur, potassium and sodium content, chloride content and metal content.
Tall Oil, Soap, Extractives
White water, lime, pine oil and soap
White water: anion content, cation demand, carboxylic acid content, uronic acid content, ASA (total), carbohydrates (total), lignin content, amount of optical brightener and starch content.
Lime: amount of free lime, metal content (sodium, magnesium, calcium, manganese, iron, aluminium, silicon, phosphorus, sulphur) and acid soluble sodium.
Pine oil: acid number, neutrals (non-saponifiables), composition of fatty and resin acids, water content, ash content, total sulphur and total sodium.
Soap: Pine oil (maximum theoretical yield in soap), lye content, calcium (important for e.g. scales), dry matter and calorific value.
Methanol/Impure Condensate
Total diterpenoid content, GC-MS screening of other organic compounds, methanol content, water content, ammonium content, total nitrogen content, TRS content (hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl disulfide), total sulfur content, monoterpene content (α-pinene, β-pinene, 3-carene, limonene), total monoterpenoid content, and total sesquiterpene content.
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