Review on the progress in emission control technologies for the abatement of CO2, SOx and NOx from fuel combustion

Asghar, Usama; Rafiq, Sikander; Anwar, Adeel; Iqbal, Tanveer; Ahmed, Ashfaq; Jamil, Farrukh; Khurram, Muhammad Shahzad; Akbar, Majid Majeed; Farooq, Abid; Shah, Noor S.; Park, Young-Kwon

doi:10.1016/j.jece.2021.106064

Cited by 153 publications

(44 citation statements)

References 154 publications

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“…Among the various renewable energy technologies, biomass is the most profuse and low carbon emission bioenergy resource. Biomass releases the same amount of CO 2 consumed during photosynthesis for its growth and works on the principle of a carbon fixation process [5]. Therefore, biomass is a carbon-neutral fuel by eliminating the increased CO 2 levels and landfill methane emissions.…”

Section: Introductionmentioning

confidence: 99%

Progress of the Pyrolyzer Reactors and Advanced Technologies for Biomass Pyrolysis Processing

et al. 2021

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In the future, renewable energy technologies will have a significant role in catering to energy security concerns and a safe environment. Among the various renewable energy sources available, biomass has high accessibility and is considered a carbon-neutral source. Pyrolysis technology is a thermo-chemical route for converting biomass to many useful products (biochar, bio-oil, and combustible pyrolysis gases). The composition and relative product yield depend on the pyrolysis technology adopted. The present review paper evaluates various types of biomass pyrolysis. Fast pyrolysis, slow pyrolysis, and advanced pyrolysis techniques concerning different pyrolyzer reactors have been reviewed from the literature and are presented to broaden the scope of its selection and application for future studies and research. Slow pyrolysis can deliver superior ecological welfare because it provides additional bio-char yield using auger and rotary kiln reactors. Fast pyrolysis can produce bio-oil, primarily via bubbling and circulating fluidized bed reactors. Advanced pyrolysis processes have good potential to provide high prosperity for specific applications. The success of pyrolysis depends strongly on the selection of a specific reactor as a pyrolyzer based on the desired product and feedstock specifications.

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Section: Introductionmentioning

confidence: 99%

Progress of the Pyrolyzer Reactors and Advanced Technologies for Biomass Pyrolysis Processing

et al. 2021

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“…The modeling of the generator in our study is carried out for R600a and R290 refrigerants. The velocities of the refrigerants in the pipe are calculated using Equation (2).…”

Section: Modeling Of the Generatormentioning

confidence: 99%

“…Air conditioning and refrigeration technologies account for almost 20% of total electricity consumption of building cooling loads around the world and is projected to increase rapidly to more than 40 times in 2100 compared to 2000 in the hot regions of the world, such as Southern Asian and the Middle East countries [1] . Nowadays, majority of such technologies are utilized by vapor compression systems which consume significant electrical energy primarily generated by power plants which consume fossil fuels, including Mazut which are all harmful pollutants for the environment [2] . Solar cooling technology has been an attractive subject for various researches for replacing the common cooling systems due to its non-polluting character and compatibility with the environment [3] .…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy simulation analysis and comparative study of solar ejector cooling system using TRNSYS for two climates of Iran

Jadidi

Keyanpour-Rad

Haghgou

et al. 2022

Heliyon

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“…So, these low-NOx combustion technologies are always used in combination with flue gas denitrification methods, including selective non-catalytic reduction (SNCR) [6,7] and selective catalytic reduction (SCR) technologies [8,9]. Nevertheless, SCR technology is characterized with problems of high operating cost caused by catalyst deactivation, low-temperature corrosion of air preheater tubes and secondary air pollution caused by ammonia escape, while SNCR encounters problems like low NOx reduction efficiency and narrow temperature window for NH 3 /NO reduction reaction [10][11][12]. Consequently, it is urgent to explore more effective and low-cost NOx reduction methods for coal-fired boilers.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ammonia Solution and Pyrolysis Gas on NOx Emission from a 75 t/h Pulverized Coal Boiler

Guo

et al. 2022

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To explore methods of reducing NOx emission from pulverized coal boilers, the effects of injecting ammonia solution and pyrolysis gas into the furnace on NOx emission were experimentally investigated on a 75 t/h pulverized coal boiler. Results show that the deep air staging with 30% separated over fire air (SOFA) creates a high temperature and strong reducing atmosphere in the reducing zone, providing the prerequisites for NOx reduction by ammonia solution and pyrolysis gas. Compared with deep air staging itself, NOx emission can be reduced by 16.7% when ammonia solution is injected from the reducing zone with a normalized stoichiometric ratio of 2.0. However, NOx reduction efficiency is largely affected by its injection position. Similarly, NOx emission is decreased by 28.2% through injecting pyrolysis gas with its calorific value of 10% into the furnace, while a further increase of pyrolysis gas input will not increase NOx reduction efficiency. When ammonia solution and pyrolysis gas are simultaneously injected into the furnace under deep air staging conditions, the overall NOx reduction efficiency reaches 92.0% and NOx emission is decreased to 39.1 mg/m3. Considering the increasingly strict NOx emission standard, these findings can provide theoretical and practical guides to the future NOx reduction in pulverized coal boilers.

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Review on the progress in emission control technologies for the abatement of CO2, SOx and NOx from fuel combustion

Cited by 153 publications

References 154 publications

Progress of the Pyrolyzer Reactors and Advanced Technologies for Biomass Pyrolysis Processing

Progress of the Pyrolyzer Reactors and Advanced Technologies for Biomass Pyrolysis Processing

Energy and exergy simulation analysis and comparative study of solar ejector cooling system using TRNSYS for two climates of Iran

Effects of Ammonia Solution and Pyrolysis Gas on NOx Emission from a 75 t/h Pulverized Coal Boiler

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