Why do power plants need to desulfurize?
With the improvement of global environmental awareness, desulfurization of power plants has become a hot topic that has attracted much attention in recent years. Desulfurization is not only related to environmental protection, but also closely related to human health and the transformation of energy structure. This article will combine the hot content of the entire network for the past 10 days to analyze the necessity of power plant desulfurization from the perspective of data, policies and technology.
1. Background and importance of desulfurization
Coal-fired power plants are one of the main sources of sulfur dioxide (SO₂) emissions. SO₂As the core component of atmospheric pollutants, it can cause acid rain, haze, and cause respiratory diseases. The following are the desulfurization related data that has been hotly discussed across the Internet in the past 10 days:
| Keywords | Searches (10,000 times) | Hot topic related events |
|---|---|---|
| Desulfurization of power plants | 12.5 | New EU emission standards release |
| The hazards of sulfur dioxide | 8.3 | The smog weather in a certain place triggers public discussion |
| Desulfurization technology | 6.7 | The new dry desulfurization technology was successfully tested |
2. Three core reasons for desulfurization
1. Environmental protection regulations
Globally, countries are increasingly restricting SO₂ emissions. For example, China's "Air Pollution Prevention and Control Law" requires coal-fired power plants to have SO₂ emission concentrations below 35mg/m³, while the latest EU draft plans to reduce the limit to below 20mg/m³.
2. Double benefits of healthy economy
According to statistics from the World Health Organization, respiratory diseases caused by SO₂ cause global economic losses of more than 100 billion US dollars each year. Desulfurization can reduce medical expenses while avoiding the damage of acid rain to crops (data shows that it can increase agricultural output value by 3%-5%).
3. Requirements for technical upgrades
The traditional wet desulfurization efficiency has reached more than 95%, but emerging semi-dry technology (such as circulating fluidized beds) can further reduce energy consumption by 15%, becoming a hot topic in recent technology forums.
3. Comparison and selection of desulfurization technology
The current mainstream desulfurization technology application ratio is as follows:
| Technology Type | Market share | Desulfurization efficiency | Typical application scenarios |
|---|---|---|---|
| Limestone-gypsum wet method | 68% | 95%-98% | Large coal-fired unit |
| Ammonia desulfurization | 18% | 90%-95% | Chemical Park's own power plant |
| Dry desulfurization | 14% | 80%-85% | Small and medium-sized industrial boilers |
4. Future development trends
According to the information disclosed in recent industry meetings, desulfurization technology will develop in three directions:
1.Resource: Convert desulfurization products (such as gypsum) into building materials
2.Intelligent: Optimize the dosage of desulfurizer through AI algorithm
3.Coordinated governance: Develop integrated devices that simultaneously desulfurize, denitrify and dust removal
Conclusion
Desulfurization of power plants is not only an inevitable choice to deal with environmental challenges, but also an important opportunity for the transformation and upgrading of the energy industry. With the advancement of technology and the improvement of policies, efficient and low-cost desulfurization solutions will continue to promote the development of green power.
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