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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in atti di convegno anno 2017

Contributo in atti di convegno

Tipo: Contributo in atti di convegno

Titolo: TAR REMOVAL FROM SYNGAS WITH NATURAL ZEOLITES FROM TUFFS: WET SCRUBBING AND CATALYTIC CRACKING

Anno di pubblicazione: 2017

Autori: Valerio Paolini, Francesco Petracchini, Claudio Lo Piano, Leonardo Longo, Andrea Colantoni, Monica Carnevale, Francesco Gallucci

Affiliazioni autori: National Research Council of Italy, Institute of Atmospheric Pollution Research. Via Salaria km29.300, 00015 Monterotondo, Italy 2 Sapienza University of Rome, Department of Astronautics, Electrical and Energy Engineering Piazzale Moro 5, 00185 Rome, Italy 3 Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Unità di Ricerca per l'Ingegneria Agraria Via della Pascolare 16, 00015 Monterotondo, Italy 4 Tuscia University, Department of Agriculture and Forestry Science Via San Camillo de Lellis snc 01100 Viterbo, Italy

Autori CNR:

  • VALERIO PAOLINI
  • FRANCESCO PETRACCHINI

Lingua: inglese

Abstract: Natural zeolites from tuffs were tested for tar removal, during woody biomass gasification. The following compounds were considered: benzene, toluene, ethylbenzene, xylenes, styrene, naphthalene, phenol, cresols and guaiacol. Two different methodologies have been tested: addition of tuffs in a wet scrubber (30 °C) and catalytic cracking (600 °C). Wet scrubbing without zeolites was not efficient towards hydrocarbons (efficiency <5%): the use of natural zeolites allowed to reach an abatement of up to 90% for benzene. Results showed that the efficiency mostly depends on water solubility and specific adsorption capacity, while volatility has a lower impact. A slight improvement was also observed in dephenolisation, especially for low volatile and low water-soluble cresols. Catalytic cracking with natural zeolites resulted in a total (>95% dephenolisation) and a satisfactory degradation of hydrocarbons, depending on the reactivity: efficiencies ranged from 82% (naphthalene) to >95% (styrene). A comparison of technologies showed that wet scrubbing is more affected by linear velocity.

Lingua abstract: inglese

Referee: Sì: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • tar removal
  • catalytic conversion
  • gasification
  • syngas

Congresso nome: 25th European Biomass Conference and Exhibition

Congresso data: 12/06/2017-15/06/2017

Congresso rilevanza: Internazionale

Congresso relazione: Contributo

Strutture CNR:

 
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