A gas plant is involved with the
processing of various gases. The gas processing technology implies the whole
process of extracting the gas from underground gas fields and brought up to
the surface by gas wells to the process of purification and producing the
final output. The processed gas, used in various residential, commercial and
industrial applications is in its 99-99.99% purity form. It is very
essential that the crude gas whether oxygen, nitrogen, or methane or for
that matter any gases must be purified to meet the quality standards as
provided by the major pipeline transmission and distribution companies.
These quality standards are not necessarily the same.
They vary from pipeline to pipeline and are usually incorporated as a
function of a pipeline system's design and the markets that it serves. There
are different types of gas processing technologies used in gas plants.
Types of Gas Processing Technologies
This is one of the most commonly used gas processing technique. In dry
physical separations, membranes, molecular sieves and PSA (pressure swing
adsorption) are used to purify the gas or for gas separations.
Dry Physical Separation
Cryogenic Technology
Whenever
the question of gas processing arises, the cryogenic technology is the most
preferred technology in almost all gas plants. Especially for the production
of oxygen and nitrogen, large sized gas plant is useful as the process is
more effective and energy-saving. Cryogenic methods have been used in
various ways in gas plants. This technology has in particular an unlimited
service life within the expected life of a gas plant and also a high degree
of separation for inert gases. Cryogenic process is a branch of physics and
engineering in which gas or any other product is studied , showing how to
produce them and how they behave at very low temperatures. Liquefied gases
are used in many cryogenic applications. Liquid nitrogen is the most common
element used in cryogenics and is purchasable around the world legally.
Liquid helium is also used and makes way for the lowest attainable
temperatures to be reached. These gases are held in containers or tanks at a
particular temperature.
Gas
Processing Technology
