Effects of reactor configuration on the yield of solid carbon from pyrolysis of low-density polyethylene

Noelia Alonso-Morales, Miguel A. Gilarranz, Francisco Heras, Semih Eser, Juan J. Rodriguez

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The formation of solid carbons by LDPE pyrolysis has been studied in three different reactors: a batch feed reactor with slow heating (BFRSH), a batch feed reactor with fast heating (BFRFH), and a semicontin-uous feed reactor with fast heating (SFRFH). The yield to solid carbons was low in the batch reactors with slow and fast heating (<3%) even when LDPE was copyrolyzed with polystyrene, lignin, and other additives. The yield increased to values between 15 and 52% when a semicontinuous feed reactor with fast heating was employed, which can be attributed to a longer residence time of primary pyrolysis products and higher extents of condensation reactions. Using a quartz reactor in the semicontinuous feed reaction system produced solid carbons with a homogeneous morphology of monodisperse spherules in high yields (15-43%) at temperatures of 750 and 850°C. A Hastelloy reactor used in the same configuration produced higher yields of solid carbons (33-52%) because of wall catalysis, but the solid carbons obtained included metal alloy particles.

Original languageEnglish (US)
Pages (from-to)6095-6101
Number of pages7
JournalEnergy and Fuels
Volume23
Issue number12
DOIs
StatePublished - Dec 17 2009

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Fingerprint

Dive into the research topics of 'Effects of reactor configuration on the yield of solid carbon from pyrolysis of low-density polyethylene'. Together they form a unique fingerprint.

Cite this