Abstract: The present disclosure relates generally to a two-stage biomass pyrolysis processes that maximize pyrolysis vapor yield from a lignocellulosic biomass while being conducive to commercial-scale throughput of biomass. A lignocellulosic feedstock is first pyrolyzed in a reactor first stage comprising at least one auger at a temperature and residence time that produces pyrolysis vapors derived predominantly from cellulose and hemi-cellulose fractions of the feedstock. Partially-pyrolyzed feedstock from the reactor first stage is then pyrolyzed in a reactor second stage at a higher temperature for an additional residence time to produce additional pyrolysis vapors that are predominantly derived from lignin. Certain embodiments arrange multiple reactor first stages around a single reactor second stage.

Abstract: The present disclosure relates generally to two-stage biomass pyrolysis systems configured to maximize pyrolysis vapor yield from a lignocellulosic biomass while being conducive to commercial-scale throughput of lignocellulosic biomass. The system includes a reactor first stage comprising at least one auger pyrolyzes a lignocellulosic feedstock at a temperature and residence time that produces pyrolysis vapors derived predominantly from cellulose and hemi-cellulose fractions of the feedstock. A reactor second stage is configured to partially-pyrolyzed feedstock from the reactor first stage at a higher temperature for an additional residence time to produce additional pyrolysis vapors that are predominantly derived from of lignin. Certain embodiments arrange multiple reactor first stages around a single reactor second stage.

Abstract: The present disclosure relates generally to a two-stage biomass pyrolysis processes that maximize pyrolysis vapor yield from a lignocellulosic biomass while being conducive to commercial-scale throughput of biomass. A lignocellulosic feedstock is first pyrolyzed in a reactor first stage comprising at least one auger at a temperature and residence time that produces pyrolysis vapors derived predominantly from cellulose and hemi-cellulose fractions of the feedstock. Partially-pyrolyzed feedstock from the reactor first stage is then pyrolyzed in a reactor second stage at a higher temperature for an additional residence time to produce additional pyrolysis vapors that are predominantly derived from lignin. Certain embodiments arrange multiple reactor first stages around a single reactor second stage.

Abstract: The present disclosure relates generally to two-stage biomass pyrolysis systems configured to maximize pyrolysis vapor yield from a lignocellulosic biomass while being conducive to commercial-scale throughput of lignocellulosic biomass. The system includes a reactor first stage comprising at least one auger pyrolyzes a lignocellulosic feedstock at a temperature and residence time that produces pyrolysis vapors derived predominantly from cellulose and hemi-cellulose fractions of the feedstock. A reactor second stage is configured to partially-pyrolyzed feedstock from the reactor first stage at a higher temperature for an additional residence time to produce additional pyrolysis vapors that are predominantly derived from of lignin. Certain embodiments arrange multiple reactor first stages around a single reactor second stage.

Abstract: A process for quenching, separating and collecting targeted components of a hot pyrolysis product stream from the pyrolysis of biomass is provided. The process utilizes sequential steps of rapid quenching and electrostatic precipitation comprising injecting a coolant comprising at least one of nitrogen, a noble gas and mixtures thereof into a hot pyrolysis vapor to selectively condense a first fraction of components from the hot pyrolysis vapor at a first predetermined temperature which is then collected by electrostatic precipitation in a first electrostatic precipitator at about the first predetermined temperature, where a wall temperature of the first electrostatic precipitator is maintained slightly higher than the first predetermined temperature. The sequential steps of coolant injection and collection are repeated at progressively cooler temperatures in order to selectively collect one or more fractions of the hot mixture.

Abstract: A process for quenching, separating and collecting targeted components of a hot pyrolysis product stream from the pyrolysis of biomass is provided. The process utilizes rapid quenching and electrostatic precipitation at a predetermined temperature in order to selectively collect one or more fractions of the hot mixture.