Removal of sulphur dioxide from flue gas by spray drying, application of spray drying desulphurization technology in the protection of the ecological environment, rational exploitation and utilization of large quantities of powdered sulphates

Removal of sulphur dioxide from flue gas by spray drying, application of spray drying desulphurization technology in the protection of the ecological environment, rational exploitation and utilization of large quantities of powdered sulphates

Abstract:

An important prerequisite for the widespread application of spray-dried gum sulfur technology is whether it can solve the problem of rational development and utilization of a large amount of powder sulfate after drying. Can be regenerated as an absorbent, part of the dry material can be recycled, as the earth’s additions, turned into a paste agent used for cement retarder, made of granular artificial gravel …

As the world’s energy consumption increases year by year, the combustion and utilization of coal as a primary energy source, releasing a large amount of sulphur dioxide as well as the formation of regional acid rain, has caused serious pollution to the environment, which disrupts the ecological balance, causing large-scale destruction of forests, acidification of soils and lakes, and corrosion of buildings.

  Therefore, controlling and reducing the emission of sulfur dioxide is an important task. Among the many desulfurization technologies, the use of spray drying method to remove sulfur dioxide from flue gas is a technology that is gaining more and more attention. This technology was first studied in the 1970s and was put into commercial operation in the late 1970s. It has less investment, simple operation, high sulfur removal efficiency, no secondary pollution, and compared with the wet method used in large quantities in flue gas desulfurization, the powder products formed by spray drying method of desulfurization have greater selectivity and development value.

  Spray drying gel sulfur technology can be widely used an important prerequisite is whether it can solve the reasonable development and utilization of a large number of powder sulfate after drying. Can be regenerated as an absorbent, part of the dry material can be recycled, as an additive to the earth, turned into a paste agent for cement retardant, made of granular artificial sand and gravel, as a filler for building materials instead of commonly used concrete and asphalt and so on.