High-pressure catalytic system for air pollution control
In the production of purified terephthalic acid (PTA), managing high-pressure exhaust gases containing pollutants like methyl acetate, methyl bromide, and carbon monoxide is crucial in ensuring compliance with environmental standards and improving process efficiency.
Catalyze pollutant removal from high-pressure exhaust gases
The high-pressure catalytic system by Dürr is designed to purify exhaust gases produced under high pressure, commonly found in the PTA production process. This system effectively removes organic pollutants through a catalytic process. It operates by first heating the exhaust gas using a heat exchanger until it reaches the catalyst’s operating temperature. Post-catalysis, the purified exhaust gas is cooled down, and energy is recovered in the downstream expander. The system’s design allows for autothermal operation and offers features such as anti-corrosive construction and long maintenance intervals, aligning with the production system’s maintenance cycle. Additionally, it supports energy recovery from the expansion of purified process gas, and customers can choose the most suitable catalyst material. Suitable for various high-pressure exhaust gas applications, the system’s small footprint allows it to be integrated seamlessly into existing production lines without extensive modifications.
Benefits
- Energy recovery from expanded process gas
- Autothermal operation reduces energy costs
- Anti-corrosive design for longevity
- Low maintenance and long intervals align with production cycles
- Small footprint for easy integration