Gas Scrubber / Knock-out Vessel

1.Product Overview

Gas Scrubber / Knock-out Vessel is a pressure vessel designed for the initial removal of free liquids and solid contaminants from natural gas streams.

It is commonly installed at the inlet of gas processing systems to protect downstream equipment and ensure stable system operation.

2.Function & Purpose

The primary function of the gas scrubber is to separate free water, liquid hydrocarbons, oil mist, and solid particles from the gas stream.

By removing these contaminants at an early stage, the scrubber helps prevent equipment damage, fouling, corrosion, and operational instability in downstream gas treatment units.

3.Typical Configuration

A typical gas scrubber consists of a pressure vessel equipped with inlet devices, separation internals, and liquid collection sections.

Depending on application requirements, the scrubber can be supplied as a vertical or horizontal vessel and may be skid-mounted for easy installation and integration.

4.Applicable Gas Sources

The gas scrubber is suitable for a wide range of natural gas sources, including:

• Pipeline natural gas

• Wellhead gas

• Coalbed methane

• Shale gas

It is widely used as a front-end protection device in gas processing, compression, and dehydration systems.

5.Design Features & Advantages

• Robust pressure vessel design for high and medium pressure gas applications

• Efficient separation of free liquids and solid contaminants

• Flexible configuration to suit different gas compositions and flow conditions

• Modular and skid-mounted options for simplified installation

• Low maintenance design with reliable long-term operation