Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation.
申请公布号
EP2593530(A2)
申请公布日期
2013.05.22
申请号
EP20110807305
申请日期
2011.07.08
申请人
ENSYN RENEWABLES, INC.
发明人
PALMAS, Paolo;SECHRIST, Paul, A.;KULPRATHIPANJA, Sid;FREY, Stanley, J.;FREEL, Barry;MYERS, Daniel, N.