natural gas liquefaction process

Air, free from dust, water vapour and carbon dioxide is compressed by increasing the pressure to about 200 atmospheres. When the pressurised air is released into a chamber through a small orifice intense cooling of the air takes place. The cooled air is subjected to the same process of c..

There are large empty spaces (voids) separating the tiny molecules of gases from one another. Each molecule enjoys an almost independent existence. Molecules are in a state of continuous rapid motion and have negligible attractive forces between them due to wide separation. This is particularly so,..

Natural Gas - It is a mixture of gaseous hydro-carbons. It is found usually along with petroleum deposits. Natural gas consists mainly of 85% methane, 10% of ethane and 3% of propane and butane. It may also contain nitrogen, oxygen, carbon di-oxide and hydrog..

There are large empty spaces (voids) separating the tiny molecules of gases from one another. Each molecule enjoys an almost independent existence. Molecules are in a state of continuous rapid motion and have negligible attractive forces between them due to wide separation. This is particular..

It is a mixture of gaseous hydro-carbons. It is found usually along with petroleum deposits. Natural gas consists mainly of 85% methane, 10% of ethane and 3% of propane and butane. It may also contain nitrogen, oxygen, carbon di-oxide and hydrogen sulphid..

Two typical fractionating columns Experimental setup for fractional distillation Fig: 16.5 Fractional distillation In this technique, the design and the total length of the column are very important factors to obtain a high degree of purity of the two separated components. If the mixture contains m..

>The following table shows the boiling ranges and uses of some fractions of petroleum: Fractions Boiling Range Uses Petroleum gas < 40C * Domestic fuel (LPG) * Production of H2 * Production of carbon block Petrol 40 170C * Fuel for light motor vehicles * Solvent for dry cleaning Kerosene ..

Composition - (Main constituent is methane) The composition of natural gas is chiefly methane (>90%) with traces of ethane and propa..

Preparation can be represented as follows..

A liquefied form of natural gas usually consists primarily of methane. Its properties are those of liquid methane, slightly modified by minor constituents. One property, which differentiates liquefied natural gas (LNG) from liquefied petroleum gas ..