Two phase modelling of Geldart B particles in a novel indirectly heated bubbling fluidized bed biomass steam reformer

Particle Development in a Fluidized Bed Black Liquor Steam Reformer

Low-temperature gasification of black liquor is a new alternative to the conventional Tomlinson recovery boiler for recovering pulping chemicals and energy from black liquor in pulp and paper mills. This process can be carried out in a fluidized bed based on steam reforming at 600 C using indirect heat supplied via heat exchangers built into the fluid bed. As black liquor is injected into the b...

Indirectly Heated Fluidized Bed Biomass Gasification Using a Latent Heat Ballast

The objective of this study is to improve the heating value of gas produced during gasification of biomass fuels using an indirectly heated gasifier based on latent heat ballasting. The latent heat ballast consists of lithium fluoride salt encased in tubes suspended in the reactor. The lithium fluoride has a melting point that is near the desired gasification temperature. With the ballast a sin...

Investigation of Fuel Chemistry and Bed Performance in a Fluidized Bed Black Liquor Steam Reformer

Biomass steam-reforming in a low throughput fluidized bed reactor

This work presents the results from biomass gasification tests in a low throughput fluidized bed membrane reactor (FBMR) and compares them with two-phase model predictions. The operating temperature was decreased to 550C, while an equimolar steam/cellulose ratio was used. The profiles of kinetics limitation and biomass conversion were analysed when a palladium (Pd) membrane for hydrogen separat...

Characterization of Tar from a Fluidized Bed Steam Reformer of Black Liquor

Black liquor is a big energy source and a crucial component for the economy of the pulp and paper industry. Black liquor is conventionally burned in the Tomlinson recovery boiler. However, black liquor gasification combined cycle (BLGCC) has some advantages over the conventional technology, like superior energy efficiency, that makes this technology suitable to replace the traditional boiler. L...