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CPVC producer Lubrizol

Corrosive exhaust air is cooled below the water dew point resulting in a reduction of the energy consumption of the dryer of 8%.

HeatMatrix installation at CPVC producer Lubrizol
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HeatMatrix installation at CPVC producer Lubrizol

8% energy savings

170 kW heat recovered

Payback time 2 years for equipment

Ambition to reduce energy

Lubrizol is committed to environmentally responsible and sustainable solutions. To reduce their energy consumption on the drying process of CPVC, they wanted to recover heat from the exhaust air of their dryer.

HeatMatrix Polymer Air Preheater

Previously no heat was recovered from the exhaust air of the dryer, because of the high hydrochloric acid content in it. When cooled down, through the water and acid dew point, hydrochloric acid is formed and corrosion occurs.  A HeatMatrix polymer air preheater was selected, because of its ability to handle corrosive exhaust air. 

Energy savings of 170kW

Incoming cold air is heated from 10 to 56 °C, resulting in an energy saving of 170 kW. Corrosion free heat recovery is achieved.

Specifications

Solution has a duty of 170 kW
Flue gas flow 13,000 kg/hr
Temperature flue gas flow 59 °C
HCl concentration 100 mg/Nm3
Installed heat exchanger HeatMatrix Polymer Air Preheater
Process flow diagram (PFD) of a HeatMatrix polymer air preheater installed on an industrial Dryer

8% energy reduction on dryer

"The HeatMatrix polymer Air PreHeater has proven to be a robust solution. After installation of the polymer APH system, the energy consumption of our dryer decreased with 8% without any corrosion issues."
Henk RuiterSr. Project Engineer, Lubrizol
Henk Ruiter

For more than 10 years we design and deliver heat recovery systems for industrial factories

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HeatMatrix technical assessment of heat recovery on an industrial dryer
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