Influence of biomass thermal pre-treatment on the particulate matter formation during pulverized co-combustion with lignite coal

Date

2022-01-15

Author

Magalhaes, Duarte
Kazanç Özerinç, Feyza

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

239
views

0
downloads

This work investigated the particulate matter formation during co-combustion of thermally pre-treated biomass with coal. Olive residue was chosen as agricultural waste biomass, and Tunçbilek lignite as the coal. The biomass was thermally pretreated to assess the influence of the pretreatment temperature on particulate matter formation during co-combustion. Specifically, the olive residue was torrefied (at 275 °C) and pyrolyzed (at 500 °C) using a tubular oven. The biomass-coal blends in a 50:50 wt% ratio were co-fired in a drop tube furnace operated at 1200 °C, heating rate of ∼ 104 °C/s, residence time of ∼ 3 s, and dry air atmospheric conditions. The particulate matter was collected at the bottom of the reactor using a three-stage stack impactor which allowed to quantify the relevant levels of PM2.5, PM2.5-10, and PM10. The results showed that co-combustion resulted in clear reduction of PM2.5 emission to values close to those of the biomass fuel. Specifically, combustion of blends of Tunçbilek lignite with olive residue, torrefied olive residue, and olive residue char resulted in 646, 408, and 559 mg/MJ input, respectively. Moreover, the mechanisms responsible for the formation of PM2.5 during biomass and coal combustion were found applicable to biomass-coal blends. The shift from fine to coarser particles with co-firing is likely to allow the capture of PM from biomass-coal co-firing by conventional coal-PM traps in existing coal power plants.

Subject Keywords

Alternative biomass, Turkish lignite, Co-firing, Particulate matter, Drop tube furnace, Single particle, Pyrolysis, Torrefaction, Biomass, Wire mesh reactor

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85115925376&origin=inward
https://hdl.handle.net/11511/93744

Journal

Fuel

DOI

https://doi.org/10.1016/j.fuel.2021.122027

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Influence of biomass thermal pre-treatment on the particulate matter formation during pulverized co-combustion with lignite coal Kazanç Özerinç, Feyza (2021-03-05) This work investigated the particulate matter formation during co-combustion of biomass with coal.Olive residue in 212-300 μm was chosen as agricultural waste biomass, and Tunçbilek lignite in 106-125μm as the coal. The biomass was thermally pretreated to assess the influence of the pretreatmenttemperature on particulate matter formation during co-combustion. Specifically, the olive residued wastorrefied (at 275 ºC) and pyrolyzed (at 500 ºC) using a tubular oven. The biomass-coal blends in a 50:50wt.% ratio...
Influence of fly ash composition on non-gray particle radiation in combusting systems Ates, CİHAN; Selçuk, Nevin; Külah, Görkem (2018-08-01) In this study, chemical composition dependency of both radiative properties of ash particles and radiative heat exchange are investigated for conditions typically encountered in industrial coal-fired furnaces. For that purpose, chemical composition dependent / independent complex index of refraction models are utilized to evaluate (i) spectral particle absorption efficiencies, scattering efficiencies and asymmetry factors, (ii) particle cloud properties representing pulverized coal fired furnaces (PC-Fired)...
Effect of airborne particle on SO2-calcite reaction Boke, H; Göktürk, Emine Hale; Caner-Saltik, EN; Demirci, S (1999-02-01) In modern urban atmosphere, sulphur dioxide (SO2) attacks calcite (CaCO3) in calcareous stone-producing gypsum (CaSO4 . 2H(2)O) which forms crust at rain sheltered surfaces and accelerates erosion at areas exposed to rain. The airborne particles collected on stone surfaces have always been considered to enhance the gypsum crust formation and thus it is believed that they should be removed from the surface to decrease the effects of SO2. In this study, our aim was to investigate this event by carrying out a ...
Influence of bag filter ash to spectral thermal radiation in fluidized bed combustors Co-Fired with biomass Yaşar, Mehmet Soner; Selçuk, Nevin; Külah, Görkem (2021-09-01) Influence of fine particles collected in bag filter on spectral thermal radiation is investigated in the freeboard of a 0.3 MWt atmospheric bubbling fluidized bed combustion test rig where lignite, lignite/olive residue, and lignite/hazelnut shell blends are fired with limestone addition. For this purpose, a 3-D radiation code based on method of lines solution of discrete ordinates method coupled with banded one gas spectral line-based weighted sum of gray gases for spectral gas properties, Mie theory for s...
Influence of coal briquette size on the combustion kinetics Altun, Naci Emre; Bagci, AS (Elsevier BV, 2004-08-15) In this study, the effects of one of the most important parameters in coal briquetting process, the briquette size, on the combustion behaviour of coal briquettes were determined from the view of combustion kinetics, i.e. their liability to ignite and combust. Effect of size on the combustion kinetics was treated by two different approaches. The first one consists of combustion kinetics experiments with briquettes of increasing sizes, thus of expanding volumes. In the second phase, briquette dimensions were...

Citation Formats

D. Magalhaes and F. Kazanç Özerinç, “Influence of biomass thermal pre-treatment on the particulate matter formation during pulverized co-combustion with lignite coal,” Fuel, vol. 308, pp. 0–0, 2022, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85115925376&origin=inward.