Recently, it seems that you can always see the bidding for desulfurization projects of steel plants. Anhui Changjiang Iron and Steel Co., Ltd. occupied 3 in one day - the general contracting of the flue gas desulfurization project of the new district double rod heating furnace (EPC), the general contracting of the flue gas desulfurization project of the old district high-line and first-rolled bar heating furnace (EPC), and the general contracting of the blast furnace hot air furnace flue gas desulfurization project of the blast furnace (EPC).
has also joined the camp to promote low-carbon development. For example, the China-Singapore Flue Gas Desulfurization and Desulfurization Project of the pellet flue gas is adopted, which adopts the "Pellet Pre-High Temperature SCR Denitrification + Circulating Fluidized Bed Semi-Dry Method (CFB) Flue Gas Desulfurization" method; the Jianlong Blast Furnace Gas Source Pure Dry Desulfurization Project adopts the pure dry desulfurization technology of catalytic oxidation method, with a desulfurization efficiency of up to 99%; Guangxi Steel Coking Plant 1# chimney flue gas desulfurization and desulfurization project, Guangxi Steel Coking Plant 1# chimney flue gas desulfurization and desulfurization project...
The steel industry, under the emission reduction pressure of green and low-carbon transformation, may be accelerating the market space in the field of ultra-low emission transformation.
Speaking of steel flue gas desulfurization, the "Guiding Opinions on Promoting the High-Quality Development of the Steel Industry" jointly issued by the three ministries and commissions this year, and the "Implementation Guidelines for Energy Conservation and Carbon Reduction Transformation and Upgrading in Key Areas of High Energy Consumption Industry (2022 Edition)" jointly issued by the four departments must be named again. There are traces to the promotion of green technology, innovation of advanced technology, energy conservation, pollution reduction and carbon reduction, intelligent digital upgrade, circular low-carbon transformation, etc., and further urge the steel and steel industry to take the lead in ensuring the achievement of the "dual carbon" goal.
As a typical "two high" project with high energy consumption and high pollution, the steel industry is the first non-electric field to carry out ultra-low emission transformation after thermal power, and flue gas desulfurization is one of the key points.
It can also be seen from the above projects that the flue gas desulfurization process system in the steel industry is basically mature, but in the context of "dual carbon", only meeting the ultra-low emission standards can only be said to be on the passing line. For example, many factories have favored wet desulfurization processes, especially limestone-gypsum processes. This process is prone to "white smoke plumes" and has no direct impact on environmental quality, but it will cause misunderstandings among surrounding residents.
Therefore, the governance policies and standards for the so-called "colored smoke plume" were born, and related industries have also begun to pay attention to the governance of colored smoke plume. The most effective way is to innovate the desulfurization process. Similar demands of
have directly or indirectly stimulated the enthusiasm for market competition. At present, technical research on flue gas desulfurization is also constantly breaking through bottlenecks.
In addition to the above mentioned, for example, Wuhan Iron and Steel Co., Ltd.'s five sintering energy-saving and environmental protection improvement and transformation project, adopts "first-level activated carbon desulfurization + SCR denitrogenation" to effectively reduce first-level activated carbon desulfurization + SCR denitrogenation; Guangxi Iron and Steel Coking Plant 1# chimney flue gas desulfurization and denitrification project adopts "SDS desulfurization + medium and low temperature SCR denitrogenation + waste heat recovery"; Fangda Jiugang West District sintered flue gas ultra-low emission project adopts "wet desulfurization and refined dust removal"; The treated flue gas + low-temperature SCR denitrification"; Ping'an Steel 108m² sintered flue gas ultra-low emission transformation project adopts "circulating fluidized bed desulfurization and dust removal + medium-temperature SCR denitrification"...
It is said that North China University of Technology has also officially established the Steel Carbon Neutralization College, focusing on five research directions: carbon neutrality of steel resources, carbon neutrality of steel energy, low-carbon processes of steel metallurgy, carbon negative emission technology innovation in the steel industry, and carbon evaluation and carbon management optimization in the steel industry.
It is said that brothers work together to cut off gold, and the three horses of "policy + technology + market" can still not drive the green and low-carbon transformation of the steel industry?
