Yildiz, Coskun ; Richter, Marcel ; Ströhle, Jochen ; Epple, Bernd (2023)
Release of Sulfur and Chlorine Gas Species during Combustion and Pyrolysis of Walnut Shells in an Entrained Flow Reactor.
In: Energies, 16 (15)
doi: 10.3390/en16155684
Article, Bibliographie
Abstract
The release behavior of sulfur and chlorine compounds into the gas phase of walnut shell particles (WNS) is studied with an entrained flow reactor. Experiments are carried out in nitrogen (N2), carbon dioxide (CO2) atmosphere and under air and oxy-fuel conditions at different temperatures (T = 1000–1300 °C) and stoichiometries (l = 0.8–1.1). A total of 98.7% of fuel-bound sulfur volatilizes as sulfur dioxide (SO2), carbonyl sulfide (COS) and hydrogen sulfide (H2S) in the gas phase in N2 atmosphere at 1000 °C. As hydrogen chloride (HCl), 37.0% of the chlorine is released at this temperature. In CO2 atmosphere, a similar total release of sulfur and chlorine is observed (1000 °C). With each temperature increment, the release of SO2, H2S and HCl in the gas phase decreases (N2 and CO2 atmosphere). SO2 forms the major sulfur component in both atmospheres. In CO2 atmosphere, higher concentrations of COS were detected than in N2 atmosphere. Air and oxy-fuel combustion conditions show significantly lower SO2, COS and HCl concentrations as in N2 and CO2 atmosphere. No H2S is detected in the gas phase during any of the combustion trials.
| Item Type: | Article |
|---|---|
| Erschienen: | 2023 |
| Creators: | Yildiz, Coskun ; Richter, Marcel ; Ströhle, Jochen ; Epple, Bernd |
| Type of entry: | Bibliographie |
| Title: | Release of Sulfur and Chlorine Gas Species during Combustion and Pyrolysis of Walnut Shells in an Entrained Flow Reactor |
| Language: | English |
| Date: | 15 August 2023 |
| Publisher: | MDPI |
| Journal or Publication Title: | Energies |
| Volume of the journal: | 16 |
| Issue Number: | 15 |
| DOI: | 10.3390/en16155684 |
| URL / URN: | https://www.mdpi.com/1996-1073/16/15/5684 |
| Abstract: | The release behavior of sulfur and chlorine compounds into the gas phase of walnut shell particles (WNS) is studied with an entrained flow reactor. Experiments are carried out in nitrogen (N2), carbon dioxide (CO2) atmosphere and under air and oxy-fuel conditions at different temperatures (T = 1000–1300 °C) and stoichiometries (l = 0.8–1.1). A total of 98.7% of fuel-bound sulfur volatilizes as sulfur dioxide (SO2), carbonyl sulfide (COS) and hydrogen sulfide (H2S) in the gas phase in N2 atmosphere at 1000 °C. As hydrogen chloride (HCl), 37.0% of the chlorine is released at this temperature. In CO2 atmosphere, a similar total release of sulfur and chlorine is observed (1000 °C). With each temperature increment, the release of SO2, H2S and HCl in the gas phase decreases (N2 and CO2 atmosphere). SO2 forms the major sulfur component in both atmospheres. In CO2 atmosphere, higher concentrations of COS were detected than in N2 atmosphere. Air and oxy-fuel combustion conditions show significantly lower SO2, COS and HCl concentrations as in N2 and CO2 atmosphere. No H2S is detected in the gas phase during any of the combustion trials. |
| Uncontrolled Keywords: | walnut shell; entrained flow reactor; pyrolysis; gasification; combustion; oxy-fuel; sulfur; chlorine |
| Additional Information: | Artikel-ID: 5684 |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST) 16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST) > Entrained Flow Reactor "PAM" |
| Date Deposited: | 17 Aug 2023 09:21 |
| Last Modified: | 17 Aug 2023 09:21 |
| PPN: | 510681972 |
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