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Effects of Fe 3 O 4 on the pyrolysis products of rubber seed oil at high temperatures
Author(s) -
Zhang Shuoyao,
Li Bo,
Zhou Shiwei,
Wei Yonggang,
Qi Xianjin,
Wang Hua
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4929
Subject(s) - pyrolysis , natural rubber , carbon fibers , materials science , yield (engineering) , scanning electron microscope , tube furnace , crucible (geodemography) , deposition (geology) , chemical engineering , composite material , chemistry , organic chemistry , engineering , paleontology , computational chemistry , sediment , composite number , biology
Summary In a pyrolysis system of fixed bed, the small molecular gases from pyrolysis products of rubber seed oil were analyzed using five different feeding methods. The gas yield of rubber seed oil was calculated. The pyrolysis characteristics of rubber seed oil at high temperatures were studied. The reduction products of Fe 3 O 4 and carbon deposition were qualitatively analyzed. The results showed that Fe 3 O 4 promoted the cracking of rubber seed oil. After Fe 3 O 4 was added, the amount of small molecular gases gradually increased. The reaction of solid carbon with Fe 3 O 4 was completed during the reaction process. The maximum volume of small molecular gases produced in the mixed system was 1816.92 mL. Under injection conditions, the reduction effect of Fe 3 O 4 was improved with increasing temperature. The conversion rate of carbon was calculated, and the lowest conversion rate of carbon deposition at 1300°C was 39.99%. As revealed by the scanning electron microscopy (SEM) analysis, the carbon particles deposited in the crucible due to water cooling were obviously smaller, with a size of approximately 0.4 μm. The carbon deposited on the wall of the tube furnace was composed of compact spheroidal carbon sheets with a metallic luster.