Detergent Plant

Brief Overview
 

Capacity:

40,000 Tons/year

Major Upgrades:

- Agglomerator installed in 1990
- New Plough Mixer installed in 2002
 

Raw Materials:

- Sulphonic Acid
- Sodium Hydroxide
- STPP Na2CO3 Na2SO4
- Polymers Betaine

Products Produced:

Detergent Powders

Utilities Consumption:

- LP Steam: 0.251 te/te detergent product
- HP Steam: 0.455 te/te detergent product
- Electricity: 0.644 MW/te detergent product
- Gas: 42.043 Therms/te detergent product
- Water: 1.07 m3/te detergent product

Documentation:

Available
 

Major Equipment:

- One blending vessel (crutcher) for formulation and adjustment before drying
- Deaerator and High pressure feed pumps
- Gas burner for air heating (80000 m3/h at 250-300°C)
- Spray Dryer with spray nozzles
- Belt conveyors
- Intermediate product Silos
- Plough Mixer
- Packing (cartons) & Bagging (big bags)
 

Process Description

Sulphonic acid manufactured at the Sulphonation plant is neutralised and mixed with STPP, Sodium sulphate and many minor ingredients in a crutching vessel. The paste is fed to a De-aerator and then transferred by High pressure feed pumps to a counter-current spray dryer which is heated by a direct fired gas burner. The dryer is fitted with a series of nozzles to distribute the feed liquor. The powder product is collected at the base of the dryer and conveyed to an intermediate product Silo. This base powder is metered, along with other powder and liquid ingredients into a Plough Mixer before being filled into cartons or Big Bags.