Filter Equipment

Documentation for filter equipment in NeqSim process simulation.

Table of Contents

Overview

Location: neqsim.process.equipment.filter

Classes: | Class | Description | |——-|————-| | Filter | Generic filter unit | | CharCoalFilter | Activated charcoal filter |

Filters are used to remove specific components or contaminants from process streams. Applications include:

Filter Class

Basic Usage

import neqsim.process.equipment.filter.Filter;

// Create filter on gas stream
Filter filter = new Filter("Particulate Filter", gasStream);
filter.run();

// Get outlet stream
StreamInterface cleanGas = filter.getOutletStream();

CharCoalFilter Class

Activated charcoal filter for removing specific components.

Basic Usage

import neqsim.process.equipment.filter.CharCoalFilter;

// Create charcoal filter
CharCoalFilter charFilter = new CharCoalFilter("Mercury Filter", gasStream);
charFilter.setRemovalEfficiency("mercury", 0.99);  // 99% removal
charFilter.run();

// Get treated stream
StreamInterface treatedGas = charFilter.getOutletStream();

Removal Efficiency

// Set removal efficiency for specific components
charFilter.setRemovalEfficiency("mercury", 0.99);
charFilter.setRemovalEfficiency("H2S", 0.95);
charFilter.setRemovalEfficiency("benzene", 0.90);

Usage Examples

Inlet Gas Conditioning

ProcessSystem process = new ProcessSystem();

// Raw gas feed
Stream rawGas = new Stream("Raw Gas", gasFluid);
rawGas.setFlowRate(100000.0, "Sm3/day");
process.add(rawGas);

// Particulate filter
Filter particleFilter = new Filter("Inlet Filter", rawGas);
process.add(particleFilter);

// Mercury removal
CharCoalFilter hgFilter = new CharCoalFilter("Hg Guard Bed", 
    particleFilter.getOutletStream());
hgFilter.setRemovalEfficiency("mercury", 0.999);
process.add(hgFilter);

// Run
process.run();

LNG Mercury Removal

// Upstream of cryogenic section
CharCoalFilter mercuryRemoval = new CharCoalFilter("Mercury Removal", feed);
mercuryRemoval.setRemovalEfficiency("mercury", 0.9999);  // Critical for aluminum equipment
mercuryRemoval.run();

double outletMercury = mercuryRemoval.getOutletStream()
    .getFluid().getComponent("mercury").getFlowRate("g/hr");
System.out.println("Outlet mercury: " + outletMercury + " g/hr");