Air preheater

gas

Air preheater (APH) is widely used in the production process of carbon black, and it is one of the most important production equipment. At the same time, APHs have also been promoted to other industries. At present, they have gradually been used in high-energy-consuming industries such as coal gas. It is gradually replacing traditional low temperature and low efficiency heat exchanger. APH improves the heat recovery rate of coal gas, optimizes the coal-to-gas production process, enables all grades of coal to be used as raw materials. By using the high-temperature APH, it could reduce production costs, brings considerable economic benefits to customers, and brings good Social benefits as well. The high-temperature air preheater, which is designed and produced by Doright for coal-to-gas usage, utilize the thermal energy released during the process of cooling the high temperature (920 °C) gas to 680 °C to heat the air (25 °C) to 600 °C, which will be used for supporting reaction or combustion. Compared with 300 °C air, 600 °C air participates in combustion, the output can be increased by 45%, while saving fuel by 9.3% -13.2%. High-temperature air preheater is the most important energy-saving equipment in carbon black production line. It can preheat the process air to 650 °C - 950 °C. By increasing the air outlet temperature, it is conducive to increasing the carbon black yield and strengthening the carbon black reaction conditions, increasing the heat value of the exhaust gas, and more beneficial to the comprehensive utilization of the exhaust gas.