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Pregled bibliografske jedinice broj: 932066

Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time


Wang, Xuebin; Jin, Qiming; Zhang, Jiaye; Li, Yan; Li, Shuaishuai; Mikulčić, Hrvoje; Vujanović, Milan; Tan, Houzhang; Duić, Neven.
Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time // Energy conversion and management, 164 (2018), 353-362 doi:10.1016/j.enconman.2018.02.082 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 932066 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time

Autori
Wang, Xuebin ; Jin, Qiming ; Zhang, Jiaye ; Li, Yan ; Li, Shuaishuai ; Mikulčić, Hrvoje ; Vujanović, Milan ; Tan, Houzhang ; Duić, Neven.

Izvornik
Energy conversion and management (0196-8904) 164 (2018); 353-362

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Polyurethane, Pyrolysis, Soot, Volatile residence time, High temperature

Sažetak
Soot is an undesired co-product during thermal- chemical disposal (incineration, pyrolysis, etc.) of plastic wastes at high temperatures, while also regarded as a valuable nanoscale carbon- based material if with proper production and post-treatment methods. In this paper, the pyrolysis of polyurethane (PU) plastics, a major composition of plastic waste, was conducted in a fixed-bed reactor to investigate the soot formation mechanism in depth. The effects of pyrolysis temperature (1000–1300 °C) and volatile residence time (0.2–2 s) on the yield, micro- morphology, composition and reactivity of soot were studied. Results show that the initialization and growth of soot particles during PU pyrolysis requires a certain high temperature and long volatile residence time. With a volatile residence time of 2 s, the soot yield is 11.0 wt.% at 1000 °C and increases to 24.5 wt.% with the pyrolysis temperature increasing to 1300 °C ; while when the volatile residence time decreases to 0.2 s, the soot cannot be observed until 1200 °C. When the pyrolysis temperature increases 1000–1100 °C, the X-ray diffraction (XRD) patterns indicates an enhanced graphitization thereby a lower reactivity of soot oxidation, which is approved by onion-like layered structures initially observed by the high-resolution transmission electron microscope (HR-TEM) at 1100 °C and 2 s. When the pyrolysis temperature increases from 1100 °C to 1200–1300 °C, NaCl is observed in soot particles, which catalysis promotes the reactivity of soot oxidation. Gas chromatography and mass spectrometer (GC–MS) was used to measure the gas and tar compositions, especially the polycyclic aromatic hydrocarbons (PAHs), are proved essential for the formation of soot precursor. A large number of PAHs with ring number ≥4 start to form at 1100–1200 °C. Based on the soot characterization and gas-tar compositions, a pathway from light fragments and mono-ring aromatics to heavier aromatic compounds is proposed aiming to explain the chemical evolution of soot precursor particles.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Projekti:
120-1201918-1920 - Racionalno skladištenje energije za održivi razvoj energetike (Duić, Neven, MZOS ) ( POIROT)

Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Neven Duić (autor)

Avatar Url Milan Vujanović (autor)

Avatar Url Hrvoje Mikulčić (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com

Citiraj ovu publikaciju:

Wang, Xuebin; Jin, Qiming; Zhang, Jiaye; Li, Yan; Li, Shuaishuai; Mikulčić, Hrvoje; Vujanović, Milan; Tan, Houzhang; Duić, Neven.
Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time // Energy conversion and management, 164 (2018), 353-362 doi:10.1016/j.enconman.2018.02.082 (međunarodna recenzija, članak, znanstveni)
Wang, X., Jin, Q., Zhang, J., Li, Y., Li, S., Mikulčić, H., Vujanović, M., Tan, H. & Duić, N. (2018) Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time. Energy conversion and management, 164, 353-362 doi:10.1016/j.enconman.2018.02.082.
@article{article, year = {2018}, pages = {353-362}, DOI = {10.1016/j.enconman.2018.02.082}, keywords = {Polyurethane, Pyrolysis, Soot, Volatile residence time, High temperature}, journal = {Energy conversion and management}, doi = {10.1016/j.enconman.2018.02.082}, volume = {164}, issn = {0196-8904}, title = {Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time}, keyword = {Polyurethane, Pyrolysis, Soot, Volatile residence time, High temperature} }
@article{article, year = {2018}, pages = {353-362}, DOI = {10.1016/j.enconman.2018.02.082}, keywords = {Polyurethane, Pyrolysis, Soot, Volatile residence time, High temperature}, journal = {Energy conversion and management}, doi = {10.1016/j.enconman.2018.02.082}, volume = {164}, issn = {0196-8904}, title = {Soot formation during polyurethane (PU) plastic pyrolysis: The effects of temperature and volatile residence time}, keyword = {Polyurethane, Pyrolysis, Soot, Volatile residence time, High temperature} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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