The Global Data of Sulfur Dioxide You Must Know and How to Reduce Emissions

Top14 SO₂
pollution hotspot
cities

Hotspot NameSO₂ emissions (kt/yr)

Norilsk1898

Kriel714

Zagroz614

Rabigh515

Singrauli507

Cantarell461

Matimba412

Reforma407

Shaiba398

Das Island397

Neyveli393

Sarcheshmeh384

Talcher347

Kemerkoy340

ACID
RAIN

On Ecological environment

It is easy to form acid rain if the concentration of SO₂ in the air is too high, which damages the ecosystem;
Destroying chlorophyll of plants, dehydrates and necrotic tissues;
Causing disease or death to a variety of animals such as cattle, sheep, dogs, pigs, etc.

On Human Health

Causing respiratory problems, such as bronchitis;
Inducing cough, wheezing, phlegm and asthma attacks, especially during exercise;
Leading to cardiovascular disease.

The death rate of air pollution

SO₂ is the most common atmospheric pollutant. Coal and petroleum are the main energy sources. The SO₂ produced by their combustion now accounts for 70% of the air pollution so that it is one of the main risk factors for the burden of disease;
Air pollution is one of the world’s leading risk factors for death, attributed to 5 million deaths each year;
Air pollution is attributed to 9% of deaths globally;
Death rates from air pollution are highest in low-to-middle income countries, with more than 100-fold differences in rates across the world.

Raw coal desulfurization

Desulfurization technology of raw coal before combustion

1.Physical method: gravity coal preparation;

2.Chemical method: alkali desulfurization, gas desulfurization, pyrolysis and hydrogenation desulfurization, oxidation desulfurization.

Desulfurization technology of raw coal in combustion

Briquette sulfur fixation technology: through the processing of raw coal (briquette machine), add a certain binder and sulfur fixation agent mixture, after the briquette machine extrusion molding and drying, which can be obtained with a certain strength and shape of finished industrial sulfur fixation briquette.

Desulfurization technology of flue gas after combustion

1.Wet flue gas desulfurization technology: limestone-gypsum flue gas desulfurization technology; ammonia flue gas desulfurization technology;

2.Semi-dry flue gas desulfurization technology: rotary spray drying method.

Oil desulfurization

1. Hydrogenation conversion desulfurization technology;
2. Biological desulfurization;
3. Ultrasonic technology;
4. Ionic liquid desulfurization technology.

Sources:

https://storage.googleapis.com/planet4-india-stateless/2019/08/204126d3-global-hotspot-and-emission-sources-for-so2_19th_august-2019.pdf

https://www.mfe.govt.nz/air/specific-air-pollutants/sulphur-dioxide

https://m.iask.sina.com.cn/b/4IkgVjRC9l.html

https://www.eqxun.com/news/1301.html

https://www.sciencedirect.com/topics/engineering/sulphur-content

https://ourworldindata.org/air-pollution#summary

http://www.ipe.org.cn/about/baikedetail.aspx?id=80

The Data on the global
impact of SO₂ And How
Desulfurization Could Save Us

Top10 SO₂
pollution hotspot
countries in the world

Top14 SO₂
pollution hotspot
cities

The trends of SO₂emission in the world'shotspots from