Borden Chemical Fayetteville (2600009)

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Hexamine Manufacturing Plant:

The hexamethylenetetramine manufacturing plant (constructed in 1981) is usually referred to as the “hexamine” plant. The process uses ammonia and formaldehyde as raw materials and results in a solid product that is loaded into bags and shipped to other Borden facilities where it is used to cure resins. Several years ago this plant produced very high methanol emissions. However, the plant was modified to include an aqueous reverse osmosis system that significantly reduced the large vapor losses from the cooling tower. The methanol is introduced into the process as a component of the formaldehyde solution. Small amounts of methanol are added to formaldehyde to act as an inhibitor and prevent the formation of para-formaldehyde. The hexamine plant emissions are controlled using an impingement plate-type wet scrubber.

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