PapersFlow Research Brief
Industrial Gas Emission Control
Research Guide
What is Industrial Gas Emission Control?
Industrial Gas Emission Control is the application of technologies such as adsorption, oxidation, wet scrubbing, and catalytic processes to remove sulfur compounds like hydrogen sulfide and sulfur dioxide from industrial processes including coal-fired power plants and biogas production.
Research in this field encompasses 37,933 works focused on removing sulfur compounds from industrial emissions. Technologies include activated carbons, metal-organic frameworks, and regenerative sorbents for processes like flue gas desulfurization and hydrogen sulfide adsorption. Growth data over the past five years is not available.
Topic Hierarchy
Research Sub-Topics
Flue Gas Desulfurization Technologies
This sub-topic explores wet limestone scrubbing, dry sorbent injection, and seawater FGD systems for SO2 removal from coal-fired power plant emissions. Researchers optimize process parameters, sorbent efficiency, and byproduct management for industrial-scale deployment.
Hydrogen Sulfide Adsorption Materials
This sub-topic investigates activated carbons, zeolites, and metal-organic frameworks modified for selective H2S capture from biogas and natural gas streams. Researchers study adsorption isotherms, breakthrough capacities, and regeneration cycles under humid conditions.
Catalytic Oxidation of Sulfur Compounds
This sub-topic covers noble metal and transition metal oxide catalysts for oxidizing H2S and mercaptans to elemental sulfur or sulfates at low temperatures. Researchers focus on catalyst design, poisoning resistance, and reaction kinetics for industrial exhaust treatment.
Regenerative Sorbent Systems
This sub-topic examines zinc oxide, iron oxide, and solid sorbents that cyclically capture and release H2S or SO2 for regeneration. Researchers develop thermal swing and pressure swing processes to minimize sorbent consumption and operational costs.
Wet Scrubbing Processes for SO2
This sub-topic studies ammonia, lime, and magnesium-based wet scrubbers for high-efficiency SO2 absorption from flue gases. Researchers model mass transfer, slurry chemistry, and scale-up challenges for utility boilers and industrial furnaces.
Why It Matters
Industrial Gas Emission Control enables compliance with environmental regulations by reducing sulfur dioxide and nitrogen oxides from coal-fired power plants and biogas, preventing acid rain and smog formation. For instance, selective catalytic reduction of NO by ammonia over oxide catalysts, as reviewed by Busca et al. (1998), supports NOx removal in stationary sources with over 2175 citations reflecting its adoption. Catalytic oxidation of volatile organic compounds, detailed by He et al. (2019) in their review with 2057 citations, addresses emissions from urbanization and industrialization that contribute to tropospheric ozone and secondary organic aerosols. Chemical-looping combustion, progressed by Adánez et al. (2011) with 2163 citations, offers efficient CO2 and pollutant capture in energy production. These methods sustain operations in power generation and chemical industries while mitigating air pollution.
Reading Guide
Where to Start
"A Comparison of Chemisorption Kinetic Models Applied to Pollutant Removal on Various Sorbents" by Ho and McKay (1998), as it provides foundational models for adsorption processes central to sulfur compound removal on sorbents like activated carbon.
Key Papers Explained
Ho and McKay (1998) establish chemisorption kinetics for pollutant-sorbent interactions, which Busca et al. (1998) extend to catalytic NOx reduction mechanisms over oxides. Wang and Wang (2017) build on these by applying persulfate activation for contaminant degradation, while Oh et al. (2016) advance heterogeneous catalysis for sulfate radicals. Adánez et al. (2011) integrate looping combustion to combine oxidation with emission capture, and He et al. (2019) review VOC oxidation linking back to sorbent and catalyst applications.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Frontiers emphasize integrating persulfate activation with catalytic oxidation for multi-pollutant control, as in Wang and Wang (2017) and Oh et al. (2016). Nitrogen combustion modeling by Glarborg et al. (2018) directs NOx minimization efforts. No recent preprints or news available indicate reliance on established reviews for current developments.
Papers at a Glance
Frequently Asked Questions
What technologies are used in industrial gas emission control?
Key technologies include adsorption, oxidation, wet scrubbing, and catalytic processes using materials like activated carbons, metal-organic frameworks, and regenerative sorbents. These target sulfur compounds such as hydrogen sulfide and sulfur dioxide from coal-fired power plants and biogas. Flue gas desulfurization and NOx removal are prominent applications.
How does selective catalytic reduction remove NOx?
Selective catalytic reduction of NO by ammonia occurs over oxide catalysts through chemical and mechanistic pathways detailed by Busca et al. (1998). The process converts nitrogen oxides to nitrogen and water in industrial flue gases. It is widely applied in power plants for emission control.
What role do persulfates play in emission control?
Persulfates like PS and PMS are activated for degrading emerging contaminants in wastewater linked to industrial gas treatments, as shown by Wang and Wang (2017) with 3744 citations. Heterogeneous catalysis generates sulfate radicals for pollutant removal, per Oh et al. (2016) with 2537 citations. These advance oxidation processes complement gas scrubbing.
What are chemisorption models for pollutant removal?
Chemisorption kinetic models compare pollutant uptake on sorbents like activated carbon, as analyzed by Ho and McKay (1998) with 2445 citations. Models predict adsorption efficiency in processes like hydrogen sulfide removal. They guide sorbent selection for industrial applications.
What is chemical-looping combustion?
Chemical-looping combustion separates combustion into air and fuel reactors using oxygen carriers for reduced emissions, progressed by Adánez et al. (2011) with 2163 citations. It captures CO2 inherently while controlling sulfur and NOx. The technology applies to power generation and reforming.
How does catalytic oxidation handle VOCs?
Catalytic oxidation degrades volatile organic compounds from industrial sources using catalysts tailored to pollutant types, reviewed by He et al. (2019) with 2057 citations. It prevents formation of secondary pollutants like ozone. Applications span various emission sources.
Open Research Questions
- ? How can heterogeneous catalysis for sulfate radical generation be optimized for simultaneous SO2 and NOx removal in flue gases?
- ? What sorbent materials improve regenerative performance for hydrogen sulfide adsorption under varying industrial conditions?
- ? Which kinetic models best predict chemisorption of multiple pollutants on mixed sorbents in wet scrubbing?
- ? How do chemical-looping processes integrate with existing power plants for scalable emission control?
- ? What mechanisms govern nitrogen chemistry in combustion to minimize NOx formation while oxidizing sulfur compounds?
Recent Trends
The field maintains 37,933 papers with no specified 5-year growth rate.
High-citation works like Wang and Wang on persulfate activation (3744 citations) and Oh et al. (2016) on sulfate radicals (2537 citations) sustain focus on advanced oxidation.
2017He et al. highlight VOC oxidation amid urbanization emissions (2057 citations).
2019No recent preprints or news reported.
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