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I once worked for an oil company developing new detergents and dispersants for motor vehicle fuel. In view of this background, and holding a Bachelor's degree in chemistry, I was naturally interested in the topic.

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Guide to Inert Gas (IG) Marine Applications

Inert gas (IG) to the chemist usually refers to any elemental gas of the eighth group of the periodic table, such as neon or argon that is resistant to chemical reaction because of possessing electronic stability. The term as used in marine applications is different, however and refers to one of two materials. Flue gases from diesel engines containing a very low level of oxygen constitute an inert gas as far as potentially explosive hydrocarbon products are concerned. Flue gases can be used to clean cargo compartments and associated equipment. In lieu of flue gases, nitrogen may also be used as the inert gas. Read about the processes and technology involved in articles by your Bright Hub contributors.

Image: Hellespont Alhambra - Supertanker

Public Domain U.S. Coast Guard

Hellespont Alhambra Supertanker - US Coast Guard

Inert Gas Protection and Cleaning of Oil Tanker Cargo Tanks Crude oil and refined hydrocarbons have been shipped in the cargo tanks of oil tankers for many years. The oil tanker design and carrying capacity has altered dramatically in the interim...	Components of Inert Gas Systems - Scrubber & Demister In this article we will learn about the scrubber which is one of the most important parts of an Inert Gas (IG) Plant used on board ships. We will also see that it might be a...
Layout Of I.G. Plant On Ships In this article we will see the overall arrangement of the IG plant used on onboard ships and its various components. We will also see how the boiler acts as a source of input to the...	Changing Atmosphere Gases Inside Cargo Tanks Using Inert Gas Systems Learn about the various methods used to replace air-hydrocarbon mixture with inert gas and vice versa on board ships as well as general cargo tank atmosphere control policy....

Inert Gas Protection and Cleaning of Oil Tanker Cargo Tanks

Crude oil and refined hydrocarbons have been shipped in the cargo tanks of oil tankers for many years. The oil tanker design and carrying capacity has altered dramatically in the interim, however one thing...

Layout Of I.G. Plant On Ships

In this article we will see the overall arrangement of the IG plant used on onboard ships and its various components. We will also see how the boiler acts as a source of input to the system....

Role of Flammability Graph in Safe Cargo Operations

The flammability triangle can serve as an immensely useful resource to plan safe cargo operations on board a ship, but merely seeing the flammability chart isn’t sufficient unless you are able to...

Components of Inert Gas Systems - Scrubber & Demister

In this article we will learn about the scrubber which is one of the most important parts of an Inert Gas (IG) Plant used on board ships. We will also see that it might be a future requirement...

Pressure Regulatory Mechanism in Inert Gas (IG) Systems on Ships

Pressure in the Inert Gas (IG) system needs to be maintained within an ideal value – neither too high nor too low. Learn why is this necessary and how is this achieved on board ships....

Maintenance of Inert Gas (IG) Systems on Ships

Prevention is better than cure and this applies to the Inert Gas system on board a ship as well. There are several components in the IG system which need to be periodically inspected...

Operation of Inert Gas (IG) Systems on Ships

This article briefly describes the starting, running and stopping procedures for a typical inert gas (IG) system on board ships. The exact operation may vary with the specific...