CFD Modelling of Calcination in a Rotary Lime Kiln

Transient Modelling of a Rotary-Kiln Pyrolyser

The increasing interest in small-scale renewable-energy plants for distributed power generation has led to a demand for suitable software tools to study and develop control systems able to manage advanced integrated systems. Biomass, as a renewable energy resource, needs to be processed if it is to be exploited in small CHP units and pyrolysis is one of the options available for transforming so...

Modelling heat transfer through a novel design of rotary kiln

A novel form of rotary kiln has been developed which confers advantages over conventional designs. Details are given of the main features of the kiln, along with an approach used to study its heat transfer characteristics when hot processing waste products into a lightweight synthetic aggregate for recycling in building materials. Computer aided ®nite element modelling was used to predict tempe...

PH Rotary Kiln Calcining

Lime Kiln Chemistry and Effects on Kiln Operations

A lime kiln is used to convert lime mud into lime for reuse in the causticizing plant of the kraft recovery process. Many of the problems encountered in lime kiln operations can be related to kiln chemistry, including TRS and SO2 emissions, dusting, ringing and refractory brick thinning. Understanding the composition and thermal behaviour of lime mud and the major chemical reactions involved is...

Calcium sulphosilicate in lime-kiln wall coating

Green calcium sulphosilicate layers were formed in lime-larnite-calcite wall coating in a lime kiln at Rivervale, Western Australia. The compound formed in the kiln flame area by the combination of siliceous lime sand feed with sulphur trioxide from the sulphurous oil fuel. The calcium sulphosilicate is orthorhombic with a IOq83, b I5"4o8, c 6'825 A, space group Pcrnn. Crystals are [IoOl tablet...