Module 1 : Introduction

Lecture 2 : Orientation

Solid-fluid process technology a) Cyclone separator b) Centrifuge c) Electrostatic separator d) Thickener e) Liquid- liquid separator Filter press	- Used for separating solids from solid-liquid or solid-gas mixtures
a) Cyclone separator	- Separates fine solid particles from a gas-solid mixture - Uses centrifugation as working principle. - Very good separation of solid and liquid possible
b) Centrifuge	- Separates solids from solid-liquid mixture - Uses the principle of centrifugation for separation - Very good separation of solid and liquid possible
c) Electrostatic separator	- Separates solids from solid-liquid mixture - Uses the principle of charged surfaces to separate the solids - Very common in process technologies.
d) Thickener	- Separates a slurry (solid-liquid) into a sludge and clarified liquid - Settling is adopted as working principle.

e) Liquid-liquid separator	- Uses decantation as working principle based on density difference.
f) Filter	- Separates a solid from solid-fluid mixture - Uses a fine mesh/cloth to separate under pressure.
Fluid transport a) Centrifugal pump b) Reciprocating pump c) Steam jet ejector d) Compressor e) Expander	- Very important to achieve process conditions desired in other important processes such as reactors and separators.
a) Centrifugal pump	- Energizes liquids to moderately high pressure.