What is high-temperature low-oxygen combustion technology?

The high-temperature air combustion technology is referred to as HTAC technology in countries such as Japan and the United States; in some countries in Western Europe, it is called HPAC (Highly Preheated Air Combustion) technology, and it is also known as flameless combustion technology. The basic idea is to burn the fuel in an atmosphere with high temperature and low oxygen concentration (by volume). It includes two basic technical measures: one is the use of a regenerative heat exchanger with a temperature efficiency of up to 95% and a heat recovery rate of over 80%, which enables maximum recovery of the sensible heat in the combustion products for preheating the air used in combustion, thereby producing high-temperature combustion air at 800–1000°C or even higher. Another approach is to employ staged fuel combustion and high-speed airflow to draw in the combustion products within the furnace, thereby diluting the oxygen volume concentration in the reaction zone and creating a low-oxygen atmosphere with a concentration of 15% to 3% (by volume).

High-temperature air combustion technology is referred to as HTAC technology in countries such as Japan and the United States; in some countries in Western Europe, it is called HPAC (Highly Preheated Air Combustion) technology, and it is also known as flameless combustion technology. The basic idea is to burn the fuel in an atmosphere with high temperature and low oxygen concentration (by volume). It includes two basic technical measures: one is the use of a regenerative heat exchanger with a temperature efficiency of up to 95% and a heat recovery rate of over 80%, which enables maximum recovery of the sensible heat in the combustion products for preheating the air used in combustion, thereby producing high-temperature combustion air at 800–1000°C or even higher. Another approach is to employ staged fuel combustion and high-speed air streams to draw in the combustion products within the furnace, thereby diluting the oxygen volume concentration in the reaction zone and creating a low-oxygen atmosphere with a concentration of 15% to 3% (by volume). In this high-temperature, low-oxygen atmosphere, the fuel first undergoes reorganization processes such as pyrolysis, resulting in thermodynamic conditions that are entirely different from those in traditional combustion processes. Heat is released through a delayed combustion process with oxygen-poor gases, and there are no longer any localized areas of high temperature and high oxygen concentration as seen in traditional combustion processes. This type of combustion is a dynamic reaction without a static flame. It boasts various advantages such as high efficiency and energy savings, as well as extremely low NOX emissions, and is also known as an environment-friendly combustion technology. Since its inception, high-temperature air combustion technology has immediately attracted great attention from developed countries such as Japan, the United States, Sweden, the Netherlands, the United Kingdom, Germany, and Italy. Its use in the heating industry has expanded rapidly, yielding remarkable energy-saving and environmental protection benefits worldwide. Here is some information shared on the application of regenerative high-temperature air combustion technology: http://bbs.hcbbs.com/thread-1496934-1-1.html (Source: Haichuan Chemical Industry Forum)

The high-temperature air combustion technology is referred to as HTAC technology in countries such as Japan and the United States; in some countries in Western Europe, it is called HPAC (Highly Preheated Air Combustion) technology, and it is also known as flameless combustion technology. The basic idea is to burn the fuel in an atmosphere with high temperature and low oxygen concentration (by volume). It includes two basic technical measures: one is the use of a regenerative heat exchanger with a temperature efficiency of up to 95% and a heat recovery rate of over 80%, which enables maximum recovery of the sensible heat in the combustion products for preheating the air used in combustion, thereby producing high-temperature combustion air at 800–1000°C or even higher. Another approach is to employ staged fuel combustion and high-speed airflow to draw in the combustion products within the furnace, thereby diluting the oxygen volume concentration in the reaction zone and creating a low-oxygen atmosphere with a concentration of 15% to 3% (by volume).