Flue-gas desulfurization - Wikipedia

Lime is typically used on large coal- or oil-fired boilers as found in power plants, as it is very much less expensive than caustic soda. The problem is that it results in a slurry being circulated through the scrubber instead of a solution. This makes it harder on the equipment. A spray

Main corrosion factors of desulfurization and

29/04/2021 · All these washing slurry will eventually be transported through the desulfurization and denitration circulating pump through the recovery system. Because the limestone slurry and gypsum slurry contain a large amount of F-, Cl-, SO32-, SO42-plasma, and the recycling of washing water in the desulfurization system, these ions are gradually enriched in the slurry, causing serious corrosion and

PAPER OPEN ACCESS Progress of Desulfurization and

25/04/2020 · of the existing devices in related industries. The process principle is as follows [10, 11]: 2CaCO3+2SO2+O2+4H2O→2CaSO4∙2H2O+2CO2 (1) Figure1 is a typical limestone-gypsum desulfurization process. In the whole desulfurization process, the alkaline absorbent slurry reacts with flue gas in the spray tower, so that SO2 contacts

Desulfurisation BSBSUCCEED

Magnesium oxide desulfurization I. Introduction. The boiler flue gas after the dust removal treatment enters the absorption tower, and the flue gas is in convection contact with the atomized magnesium hydroxide slurry sprayed from the spray pipe in the tower from the

SCR denitration for building materials factory_Shandong

Project brief . In line with the principle of creating a good production and living environment for employees and surrounding residents, the leaders of the company plan to collect and process the gas produced by the company and completely eliminate the hidden trouble of

Denitration BSBSUCCEED

SCR denitration I. Introduction. SCR (Selective Catalytic Reduction) technology is to spray reducing agent (ammonia or ammonia water) into the SCR reactor with a temperature range of 300420℃ in the presence of catalyst and oxygen to selectively remove the NOx reduction generates N2 and H2O to reduce NOx. The main reactions are as follows

Combined Desulfurization, Denitration and De-mercury

agent. The principle is that oxygen, water and other particles in flue gas were blazed into the activating groups through high-voltage electron beam irradiation, and then these activating groups transform SO 2 into H 2 SO 4 rapidly by oxidation. The method does not produce waste water and

HSE: Information about health and safety at work

Annual health and safety statistics 2019/20 HSE has released its annual statistics on work-related health and safety in Great Britain.; The UK has left the EU, new rules apply Rules have changed for some industries. Find out if you are affected.

CN103301747A - SCR (Selective Catalytic Reduction) flue

The invention relates to an SCR (Selective Catalytic Reduction) flue gas denitration device for urea pyrolysis, and belongs to the technical field of flue gas denitration of boilers. A urea storage cabin quantitively feeds urea to a urea dissolving tank through a weighing feeder, a urea solution storage tank transports a solution to a pipeline mixer through a frequency conversion metering

Design Codes - Plant - HSE

02/01/2010 · The design of the furnace or boiler enclosure should be able to withstand the thermal conditions associated with the system and specialist designs are often required. Many codes and standards exist for boiler design. The elimination of hazards in burner design is a