Pollutant emission from a heat station supplied with agriculture biomass and wood pellet mixture

Juszczak, Marek; Lossy, Katarzyna

doi:10.2478/v10176-012-0020-3

Cited by 11 publications

(5 citation statements)

References 21 publications

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“…The increased sulfur content was also observed for some oilseed samples, such as mustard (1.08wt%), sunflower (up to 0.2wt%), camelina (up to 0.9wt%), and cocoa (0.11wt%). This was similar to information found in other literary sources [29][30][31][32]. The combustion of sulfur-containing material releases its volatile content, which subsequently reacts with hydrogen to form hydrogen sulfide, or with oxygen to form sulfur dioxide.…”

Section: Resultssupporting

confidence: 88%

Characteristic Properties of Alternative Biomass Fuels

et al. 2020

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Biomass is one of the most promising renewable energy sources because it enables energy accumulation and controlled production. With this, however, the demand for biofuels grows and thus there is an effort to expand their portfolio. Nevertheless, to use a broader range of biofuels, it is necessary to know their fuel properties, such as coarse and elemental analysis, or lower heating value. This paper presents the results of testing the fuel properties of several new, potentially usable biofuels, such as quinoa, camelina, crambe, and safflower, which are compared with some traditional biofuels (wood, straw, sorrel, hay). Moreover, the results of the determination of water content, ash, and volatile combustible content of these fuels are included, along with the results of the elemental analysis and the determination of higher and lower heating values. Based on these properties, it is possible to implement designs of combustion plants of different outputs for these fuels.

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Section: Resultssupporting

confidence: 88%

Characteristic Properties of Alternative Biomass Fuels

et al. 2020

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“…Lower values of mechanical durability (higher content of fines) in combination with higher ash content (additivated and non-additivated corn cob pellets) are directly correlated with increased TPM-emissions from the combustion of corn cob pellets, which will be discussed in detail in the following sections. Our results are in line with findings by [23], where combustion efficiency was reported to range from 83 to 89% when using maize as a fuel, and in general efficiency varied between 79 and 91% when combustion agricultural residues in a 15 kW pellet oven, and higher than those reported by [58,59] (64% and approximately 75%). High excess air values during smallscale biomass combustion was also reported in a study by [60], where excess air value ranging from 2.5 to 7.5 from wood pellet ovens were calculated.…”

Section: Performance Indicatorssupporting

confidence: 92%

Fuel Improvement Measures for Particulate Matter Emission Reduction during Corn Cob Combustion

2021

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Fuel-related measures and modernization of small-scale combustion units has become the focus of attention in the renewable heat generation sector, as a means to promote local biomass utilization and fuel-flexibility while meeting strict environmental legislative requirements. With the aim to mitigate total particulate matter emissions and ash-associated problems characteristic of crop residue combustion, (1) corn cob pellets (with and without kaolin and binder) as well as (2) fuel blends with wood pellets were combusted in a pellet oven under full load. Results show that additivation or fuel blending (e.g., 50 wt. % wood and 50 wt. % corn cob pellets) reduce total particulate and CO-emissions by 48 to 60 wt. % and 64 to 89 wt. %, respectively, in comparison to baseline emissions from non-additivized corn cob pellets. Kaolin prevented sintering of corn cob ash. However, considerable grate ash entrainment was observed. TPM consists of a “primary network”—polyhedral and spherical particles approximately 1 μm in diameter (mainly KCl), and a “secondary network” built on top of the primary network, consisting of square-prism-shaped particles of approximately 200 nm in diameter. KCl and K2SO4 are main compounds in particles from corn cob and wood pellet combustion, respectively. Effective measures demonstrated within this study should be complemented with low-cost coarse ash removal systems.

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“…In this case, although a trend with the pine percentage was not detected, a reduction in CO emissions close to 50% was observed. Some authors indicate that the addition of pine to herbaceous or energy crops leads to a reduction in CO emissions due to the lower ash content in the blend [14,16]. Table 6.…”

Section: Gaseous Emissionsmentioning

confidence: 99%

Combustion of Poplar and Pine Pellet Blends in a 50 kW Domestic Boiler: Emissions and Combustion Efficiency

2018

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Poplar pellets with and without Ca, Mg-lignosulphonate and three poplar and pine pellet blends (with three different percentages of pine-5, 45 and 95 wt.%) were burned in a 50 kW domestic boiler in order to evaluate their suitability as fuels. The boiler efficiency and emissions were analyzed and compared with those from tests with poplar pellet. It was found that the adequate adjustment of excess air and of flowrate of secondary air according to the fuel properties improve the combustion efficiency. The results show an improvement in CO and NO x emissions and combustion efficiency when either Ca, Mg-lignosulphonate or pine were blended with poplar. However, the use of Ca, Mg-lignosulphonate is discouraged due to the observed increase in SO x emissions. No operational problems related with unburned matter or ash were observed for any of the pellet blends tested.

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Pollutant emission from a heat station supplied with agriculture biomass and wood pellet mixture

Cited by 11 publications

References 21 publications

Characteristic Properties of Alternative Biomass Fuels

Characteristic Properties of Alternative Biomass Fuels

Fuel Improvement Measures for Particulate Matter Emission Reduction during Corn Cob Combustion

Combustion of Poplar and Pine Pellet Blends in a 50 kW Domestic Boiler: Emissions and Combustion Efficiency

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