Knowledge What are the Emissions of Pyrolysis? 4 Key Gases and Their Impact
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Tech Team · Kintek Solution

Updated 3 weeks ago

What are the Emissions of Pyrolysis? 4 Key Gases and Their Impact

Pyrolysis emissions include carbon monoxide (CO), nitrogen oxides (NOX), and sulfur dioxide (SO2).

These emissions meet certain standards.

The concentrations are measured at 10.6 ppm for CO, 16.8 ppm for NOX, and 2.3 ppm for SO2.

Pyrolysis produces solid char, liquids (water and bio-oil), and gases.

Char is the solid product, containing organic matter with high carbon content and ash.

Water is produced during the initial drying stage and through evaporation.

Bio-oil is a brown, polar liquid that is a mixture of oxygenated compounds.

The composition of bio-oil varies depending on the feedstock and reaction conditions.

Gas products from pyrolysis include carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), hydrogen (H2), and other gases like nitrogen oxide (NOX) and sulfur oxide (SOX).

The temperature affects the types of gases produced.

The pyrolytic gas from biomass pyrolysis includes hydrogen (H2), hydrocarbon gases (C1-C4), carbon dioxide (CO2), carbon monoxide (CO), and hydrogen sulfide (H2S).

These gases can be classified into three categories: incombustible gases (H2O and CO2), combustible gases (CO and CH4), and N-containing gases (NH3 and HCN).

The yield of pyrolytic gases depends on the temperature.

Lower temperatures result in lower gas yield.

Higher temperatures lead to further secondary reactions and increased gas yield.

Using zeolite catalysts can increase the yield of pyrolytic gas.

The yield of pyrolysis products can vary significantly depending on the process conditions.

Typically, the yields of bio-oil, bio-char, and gaseous products are in the range of 50 wt%-70 wt%, 13 wt%-25 wt%, and 12 wt%-15 wt%, respectively.

In summary, the emissions of pyrolysis include carbon monoxide (CO), nitrogen oxides (NOX), and sulfur dioxide (SO2).

The main products of pyrolysis are solid char, liquids (water and bio-oil), and gases.

The gas products consist of carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), hydrogen (H2), and other gases like nitrogen oxide (NOX) and sulfur oxide (SOX).

The yield of these products can vary depending on the process conditions.

Continue exploring, consult our experts

What are the Emissions of Pyrolysis? 4 Key Gases and Their Impact

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Our cutting-edge equipment can help you achieve efficient pyrolysis processes.

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With our advanced technology, you can classify and control the formation of incombustible gases, combustible gases, and N-containing gases.

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