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SO2

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

Pollution sources

Top10 SO2
pollution hotspot
countries in the world

map

Top14 SO2
pollution hotspot
cities

The trends of SO2emission in the world'shotspots from

2005-2018

Accurate value

Curve fitting

Iran

Iran

Mexico

Mexico

Russia

Russia

Saudi Arabia

Saudi Arabia

South Africa

South Africa

Turkey

Turkey

Ukraine

Ukraine

USA

USA

China

China

India

India

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.
SO2 now accounts for 70% of the polluted atmosphere

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.
Share of deaths from air pollution, 2017

Measures to
reduce sulfur content

Sulfur emissions are basically generated by fossil combustion (coal, oil, etc.), SO2 emissions are proportional to feed Sulphur content, fuel desulfurization technology can effectively improve sulfur dioxide emissions.

Raw coal desulfurization

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

Oil desulfurization

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

Click to download the infographic

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