System and method for preparing ammonium sulfate by utilizing sulfur-containing flue gas of boiler

Abstract

The invention relates to a system and a method for preparing ammonium sulfate by utilizing sulfur-containing flue gas of a boiler, a boiler flue is connected with a raw reaction device, the raw reaction device is connected with a water supply device, a sulfuric acid collection device, a hydrogen iodide decomposition device and a reactor exhaust gas collection device, and the hydrogen iodide decomposition device is connected with a hydrogen collection device and an iodine recovery device. The iodine recovery device is connected with an iodine supply device and a reaction device; the reactor exhaust gas collecting device is connected with a deoxidizing device, the deoxidizing device is connected with a methane preparing device, the methane preparing device is connected with a methane storing device and an ammonia preparing device, the ammonia preparing device is connected with an ammonia storing device and an ammonium sulfate preparing device, the ammonium sulfate preparing device is connected with an ammonium sulfate storing device, and a sulfuric acid collecting device is connected with the ammonium sulfate preparing device; and a hydrogen collecting device is connected with the deoxidizing device, the methane preparing device and the ammonia preparing device On the basis of the system, ammonia gas and sulfuric acid react to generate ammonium sulfate chemical fertilizer, full-quantitative resource utilization of flue gas discharged by a boiler is achieved, and good social benefits can be generated.

Description

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AI Technical Summary

Benefits of technology

This patented technology solves problems with current methods such as burning or decompositing sulfur oxides into harmless products like elemental sulfur (S), which requires expensive equipment that consumes too much power compared to other ways of generating it. Additionally, these processes produce harmful chemicals called H2O2. These technical results include improved efficiency, reduced environmental impact, lower costs associated with manufacturing materials through various techniques, making them more economically viable than traditional ones.

Problems solved by technology

Technological Problem addressed in this patents describes how reducing harmful emissions from power plants can be achieved through various methods such as capturing or utilising less energy than needed during combustion processes.

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