A. H. Lundberg is the leading supplier of Non-Condensable Gas (NCG) collection systems to the Pulp and Paper industry, with over 200 systems installed worldwide.

NCG can be separated into three categories depending upon the composition. These are: Chip bin gases (CBG) from the continuous digester are a hybrid category. They are typically collected with the HVLC NCG, but require special conditioning due to high TRS concentration excursions. Typical LVHC NCG concentrations are shown in Table 1.

“NCG” These gases are mainly generated during the Cooking of wood, Washing of Pulp, Operation of Evaporator. NCG vented to the atmosphere can cause injury, environmental damage, and nuisance odor. NCG systems reduce Kraft mill odor by collecting and destroying the gaseous reduced sulfur compounds. TRS compounds

AHLS is a process technology company that specializes in air and water related environmental control systems. We have successfully delivered state of the art engineering solutions to the international Pulp and Paper, Wood Products, Chemical, Mining, …

ANDRITZ offers a full line of treatment systems for CNCG, DNCG, and Stripper Off-Gases (SOG). The thermal treatment location can be selected according to mill-specific requirements and conditions.

TRS gases that are emitted from digesters, evaporators, turpentine systems, strippers, brown stock washers and liquor storage tanks are contained in gases referred to as Noncondensible Gases (NCG). Attempts to collect and burn NCG were first tried in the late 1950's.

NCG System at APL CNCG & DNCG both systems operated. CNCG system typically collected gases from Evaporator, Foul condensate tank. CNCG is high in combustibles, low in Oxygen. DNCG system collect gases from Blow tank, Filtrate tank, Chip bin etc.

tower. Provision is made for collecting the NCG with or without scrubber in service. NCG are tran ported with the help of an ejector system in which LP steam is used as motive

With Valmet’s Mill-Wide NCG Solutions for non-condensable gas (NCG) collection and primary and back-up incineration of gases, you can efficiently control and minimize the odors emerging from your pulping and chemical recovery processes.

Gas collection systems or noncondensible gas (NCG) systems, are used to collect gases from the various pulping processes and transport them to an appropriate air pollution control device. There are two basic categories of NCGs: low volume, high concentration (LVHC); and high volume, low concentration (HVLC).