Article pubs.acs.org/EF
Pyrolysis of Lignite with Internal Recycling and Conversion of Oil Yong Huang,† Hajime Sakamoto,‡ Shinji Kudo,† Koyo Norinaga,†,‡ and Jun-ichiro Hayashi*,†,‡,§ †
Institute for Materials Chemistry and Engineering, ‡Interdisciplinary Graduate School of Engineering Sciences, and §Research and Education Center of Carbon Resources, Kyushu University, 6-10, Kasuga Koen, Kasuga 816-8580, Japan S Supporting Information *
ABSTRACT: The present authors studied pyrolysis of lignite with internal recycling of a heavier portion of the liquid product (oil), employing a reactor that experimentally simulated continuous pyrolysis in a gas−solid countercurrent moving-bed reactor. The lignite particles traveled through the isothermal section at the temperature (Tiso) of 140 or 180 °C and then the nonisothermal section from Tiso to the peak pyrolysis temperature (Tp) of 600 °C. Among the volatile products, a lighter portion of the oil (LO) with a normal boiling point of
