Natural Gas Dehydration Processes

Water vapor in an all-natural gas flow might result in range connecting due to moisturize formation, reduction of range potential due to collection of free water in the queue, and high threat of damage to the direction due to the corrosive results of water. Consequently, water vapor ought to be removed from organic gas to avoid moisturize formation or even corrosion from condensed water.

Natural Gas Dehydration Processes is the process of removing water vapor from a gas flow to lower the heat range at which water will condense from the stream; this temperatures are known as the “dew point” of the gas. Molecular sieves are considered as one of the most important components that are used as desiccant components in commercial organic gas dehydration.

What is dehydration?

Natural Gas Dehydration Processes is the removal of water from an object such as organic gas and oil. In addition to splitting oil and some condensate from the wet gas flow, it is necessary to remove most of the water. Most of the fluid, free water associated with produced organic gas, is removed by easy separation methods at or near the wellhead.  

Natural gas must be dried to remove water vapor which leads to the formation of hydrates, over saturation of organic gas, and corrosion of devices. Hydrates are solid, ice-like frozen compounds formed of hydrocarbons and water. Moisturize formation occurs in high-pressure sources with a low heat range. Hydrates can form, however, at temperature ranges above cold point. The process improves saturation and helps to make more water vapor. Hydrates cause cold and blocking of sewer lines, valves and other devices, leading to production problems.

Alternative Ways Of Dehydrating Natural Gas

Natural gas dehydration entails removing vapor from natural gas. This procedure has been proven vital in gas transmission. This is because it assists to minimize corrosion while limiting the formation of gas hydrates. Also, without dehydration, water in its liquid form would otherwise condense in pipelines. Later, it would accumulate at the low points of the line. Its result is reduction in flow capacity. Fortunately, the following three methods have been developed to aid in dehydration.

To begin with, you might choose direct cooling in the natural gas dehydration process. This is possible because the saturated water vapor is decreased with more pressure or lower temperatures. Ideally, the gases are compressed then cooled at the lowest temperatures that the gases might thereafter be exposed to.
 

Absorption of water is only useful in natural gas dehydration process that involves glycols. In this case, you will rely on a liquid desiccant to eliminate the water gas. An ideal liquid for this procedure must be non-toxic, non-corrosive, with high absorption efficiency not forgetting that it should be easily and economically regenerated. 

Adsorption of the water using a solid is the last option that you can select from for natural gas dehydration process. Appropriate solid desiccants must be used severally and be easily degenerated. Note that you can select from the physical and chemical surfaces. Under a physical surface, you should have a large area with high rate of mass transfer and low gas’ resistance. The chemical surface on the other hand should be inert, non-corrosive and cheap to say the least.

BIOGAS’ RISKS AND HOW TO MAKE IT SAFER

Bio gas processing has proven to be a great solvent recovery system since its invention. Unfortunately, in the process of removing wastes to recover solvents and to come up with methane and fertilizers, the following risks might occur;

Explosion or fire may not be avoided when safety measures are not put in place. This is because as a core constituent of biogas, methane forms explosive mixtures once it is exposed to oxygen (air).

The solvent recovery system relies on different populations of bacteria from unidentified sources. It is luckless that unless contact with these bacteria is avoided, people will contract some diseases.

Asphyxiation has also been noted as another harmful risk in processing this useful gas. CO2 and H2S in biogas displace oxygen in the human body. This in turn alters with the respiratory rate, damages lungs and olfactory tissues. Luckily, with the following safety measures, we can bet that, biogas has the potential to be the safest fuel globally.

To begin with, one can clean and upgrade biogas to eliminate CO2 and H2S and hence make it a good source of vehicle fuel.  

For the risk of explosion, you will want to eliminate a source of ignition. In the fire triangle, you require a source of ignition, Oxygen and fuel to cause fire. Hence, you simply need to eliminate one of those elements and all shall be well.

Finally, you can rely on H2S to check on leaking. This chemical has a characteristic smell that can be used to detect leakage and hence minimize the symptoms and fatality of asphyxiation.