Gas Purification Solution

The MinerPower and GasPick gas computing combination developed by LINKMINE is an ideal choice for various mobile and fixed applications. Whether it is using oilfield gas or biogas extracted directly from underground, it can present efficient purification.

How to achieve it?

1. Dust removal

Purpose:
To remove solid particulate matter in the gas, such as dust and sand particles. These particulate matters may wear down equipment, clog pipelines, and affect subsequent combustion efficiency.
Methods Cyclone separation: Centrifugal force is generated by the rotation of the gas, causing the solid particles to be flung towards the wall of the device under the action of centrifugal force, and then fall along the wall to the bottom and be discharged under the action of gravity. This method has a simple structure and is easy to operate, and can effectively remove larger particles of dust.
Filtration separation: Solid particles are intercepted by a filter (such as a bag filter or a cartridge filter). When the gas passes through the filter, the particles are retained on the surface of the filter medium, while the clean gas continues to flow through the filter medium. This method can remove fine particles and has a high filtration efficiency.
2. Desulfurization

Purpose:
To reduce the sulfide content in the gas. Sulfides (such as hydrogen sulfide, etc.) will form harmful gases such as sulfur dioxide during the combustion process, causing environmental problems such as acid rain and corroding equipment.
Methods Wet desulfurization: Pass the gas into the absorption liquid, so that the sulfides react with the chemicals in the absorption liquid and are removed. For example, an alkaline solution (such as sodium hydroxide solution) is used as the absorbent, and hydrogen sulfide reacts with sodium hydroxide to form sodium sulfide and water. This method has a high desulfurization efficiency and can handle gas with a high sulfur content, but it will produce a certain amount of desulfurization waste liquid that needs to be treated.
Dry desulfurization: Chemical reactions occur between solid desulfurizers (such as iron oxide, etc.) and sulfides. Sulfides are adsorbed on the surface of the desulfurizer and react and transform into other substances. The advantage of this method is that the equipment is simple and there is no waste liquid, but the desulfurization efficiency is relatively low and it is suitable for the purification of gas with a low sulfur content.
3. Decarbonization

Purpose:
To reduce the carbon dioxide content in the gas. In some specific application scenarios, such as when the gas is used for chemical synthesis or in situations where the purity of the gas is required to be high, it is necessary to reduce the carbon dioxide content. Methods
Chemical absorption method: Carbon dioxide is absorbed through a chemical reaction between the absorbent (such as amine solution) and carbon dioxide. For example, monoethanolamine (MEA) solution can react with carbon dioxide to form carbonate, thereby achieving the removal of carbon dioxide. The absorbed absorbent can be regenerated by heating and other methods for recycling.
Physical adsorption method: The physical adsorption effect of carbon dioxide by the adsorbent (such as activated carbon, molecular sieve, etc.). Under certain temperature and pressure conditions, carbon dioxide molecules are adsorbed in the pores on the surface of the adsorbent. When the conditions are changed (such as reducing the pressure or increasing the temperature), the carbon dioxide can be desorbed to regenerate the adsorbent.
4. Dehydration

Purpose:
To remove the moisture in the gas. Moisture in the gas may cause pipeline corrosion, form hydrates to clog the pipeline, and affect the calorific value and combustion performance of the gas. Methods
Cooling dehydration: Cool the gas below the dew point temperature to condense the water vapor into liquid water, and then separate the liquid water through a separation device (such as a gas-liquid separator). This method is simple and effective, but for gas with a high moisture content, a large cooling load is required.
Adsorption dehydration: Use an adsorbent (such as silica gel, alumina, etc.) to adsorb the moisture in the gas. The adsorbent has a large number of microporous structures that can adsorb water molecules. When the adsorbent is saturated with adsorption, it can be regenerated by heating and other methods to restore the adsorption capacity.

Characteristics and advantages

• Sturdy and durable. Extremely suitable for reliable operation in harsh, remote, mobile or stationary mission-critical applications.
• "Ready-to-run" installation. Can be easily switched with the existing diesel rig power generation drive.
• Reduce operating costs. Using on-site natural gas can reduce operating costs by up to 80% compared to diesel or dual fuel.
• Fuel flexibility. It can adapt to various gas qualities during operation, including high calorific value oilfield gas (up to 1,654 BTU HHV), HD-5 propane and ethane, without knocking.
• Low emissions. With a three-way catalyst, the MinerPower engine can meet or even exceed the latest environmental protection requirements, and emissions can be reduced by up to 95% compared to diesel engines.
• High-altitude performance. Compared to diesel technology, it can operate at higher altitudes (up to 8,000 feet) without reducing the rated output, and the performance is not affected.
• Outstanding transient load capacity. The MinerPower engine can handle high load changes in just two steps (comparable to diesel engines).