Pulp and Paper
CLEAN COMBUSTION™ INCINERATORS To minimize harmful emissions, certain streams must be incinerated including gases and liquids such as non-condensable gases (CNCG & DNCG), stripper off gases (SOG), methanol and turpentine while keeping NOx emissions low. The Clean...
Pulp and Paper
BLACK LIQUOR OXIDATION & WHITE LIQUOR OXIDATION When using white liquor in processes such as oxygen delignification and bleaching extraction, sodium sulfide (Na2S) can negatively impact the pulp quality. One solution is to use oxidation of white liquor which also...
Pulp and Paper
OPTIMUM ACID™ A closed-loop system in a pulp mill faces challenges in maintaining an optimal sodium-sulfur balance. Non-condensable gases serve as a sulfur source, containing hydrogen sulfide, methyl mercaptan, and dimethyl sulfide. Typically, these gases are...
Pulp and Paper
GENERATOR ACID PURIFICATION™ (GAP) To produce chlorine dioxide, an excess of sulfuric acid and a reducing agent is required, resulting in a residual acid mixture of both sulfuric acid and sodium sulfate. Traditionally, most of the residual acid is sent to the sewer...
Pulp and Paper
Crystalline Nanocellulose™ (CNC) In the production of crystalline nanocellulose, the high acid use due to the large volume of raw material, results in increased recycling costs. Traditional methods, such as dialysis, are commonly used to purify crystalline...
