The recovery of cutinase of Fusarium solani pisi produced by the yeast Saccharomyces cerevisiae was studied in a fluidised bed adsorption system directly integrated with a productive fermenter (so-called direct product sequestration; DPS). The relative efficiency of this system was compared with the one of a conventional purification process by discrete sequences of fermentation, broth clarific...

Large quantities of glycerol are produced as a somewhat useless, industrial by-product, when producing biodiesel. Thus, the combustion this waste (containing glycerol, less volatile, non-glyceride oils, ash and water) in fluidised bed has been investigated. The fuel entered bottom (on its axis) bubbles vapour, which rose up bed, surrounded by fluidising air. While more difficult to burn than me...

Combustion characteristics (Introduction) .................................................................................................... 1 Combustion fundamentals (What it is) ..................................................................................................... 1 What it is not ...................................................................................................

Gaseous emissions from the fluidised bed co-combustion of 50% w/w chicken litter and peat were monitored and recorded. Emission data were used to create a dispersion model for a proposed site on a poultry farm in Ireland. Variables within the combustion unit influenced both combustion and emission levels of pollutants such as SO(2) and NO(x), CO. Concentrations of atmospheric pollutants decreas...

Catalyst emissions from fluidising catalytic cracking units have the potential to impact significantly on the environmental compliance of oil refineries. Traditionally it has been assumed that gas velocity and fine particles significantly impact on emission levels. Through the use of a simple fluidised bed model, sensitivity analysis was conducted to identify the key operating parameters that i...

A possibility to carry out Sorption-Enhanced Gasification (SEG) is represented by its integration with the calcium looping concept in Dual Interconnected Fluidised Beds (DIFB). This article focused on sorbent CO2 uptake performance and attrition/fragmentation tendency when operating conditions simulating those of a DIFB-SEG process are adopted. Experiments were carried commercial Italian limest...