Solid Mixing in Fluidised Bed

Fluidised bed drying of soybeans.

The fluidised bed drying characteristics of soybeans at high temperatures (110-140 degrees C) and moisture contents, 31-49% dry basis, were modelled using drying equations from the literature. Air speeds of 2.4-4.1 m/s and bed depths from 10 to 15 cm were used. The minimum fluidised bed velocity was 1.9 m/s. From a quality point of view, fluidised bed drying was found to reduce the level of ure...

Solid Exchange between the Bubble Wake and the Emulsion Phase in a Gas-fluidised Bed

Solid exchange between the bubble wake and the emulsion phase in a gas-fluidised bed was studied both experimentally and theoretically. Measurements were made on the tracer particle concentration profile produced after a single bubble passage in a two-dimensional bed, and the solid exchange coefficients were estimated with the results of simultaneous measurements on the shape, the size and the ...

A Study of Fluidised Bed Granulation

I\I: ei:peril1lr~n:al s+;udy 01' f l L!idis2d ~eci 0ranulatiu.l is pre~ent2d. Preliminury ex~e;ililentc, est?~,;lisn the mCl i 1-, variabl'_s in the granulation pr'ocess and er.able a systemc.tic cxperimcr.tal programme to be Jevised. In this programrre, f';ither glass p(jwdel~ Ol~ po,ous alum~na are used as the bed rrateY·ial. The ef'ft~cts of the f:.mdame!1tal fluiciised bed granulation param...

Biomass gasification with NiO/Olivine catalysts in fluidised bed gasifier

Tar removal from biomass gasification gas is a crucial problem in applying syngas from biomass for its downstream applications. Catalytic biomass gasification has given promising results for tar cracking. A few research groups have investigated the use of olivine for tar cracking [2,3,4,7,8,9,10]. The presence of oxides of iron and magnesium in the mineral olivine give it the ability to crack h...

Concealed haemorrhage in patients nursed on an air fluidised bed.