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Purification is the removal of contaminating substances and by-products to increase the level of purity of the desired substance. Considerations for choosing a suitable purification system in the industry, include the physical state of the mixture, the desired product, required level of purity, the type of mixture, heat sensitivity of the product, number of purification steps needed, and the production volume. Industrial purification systems are used for the production of pure water in the food pharmaceutical and biotech industries.

Purification

Straw

Biogas upgrading refers to the process of purifying biogas through separating methane from carbon dioxide and other gases. The purified biogas, also known as renewable natural gas or biomethane, can be injected into a gas distribution network or used as vehicle fuel. If you need to upgrade biogas produced from organic wastes such as cow manure and wastewater, you need a solution which can easily be integrated with your existing biogas plant.


<h2>Proven membrane technology ensures high methane recovery</h2>
Innovatively designed by Bright Biomethane, PurePac Mini can fit inside one sustainable housing. The unit’s pre-treatment, membrane separation, and compressor are all fitted inside one 40 ft. container. It can create a biogas flow of 30 to 65 Nm3/hr, making it ideal for small scale biomethane production and gas grid injection.

The small-scale biogas upgrading system uses highly efficient membranes to separate methane from biogas, which ensures a methane recovery of more than 99.5% and less than 0.5% of methane loss, making it more efficient than any other biogas purification systems.

Moreover, the unit can be used to purify gas to the desired methane concentration, according to the specific grid and user requirements. Suitable for use in agricultural industries and wastewater treatment plants, PurePac Mini provides a robust design, optimal gas cleaning, and a state-of-the-art patented control system.

Small-scale biogas upgrading system

The primary purpose of biogas upgrading technology is to increase the volumetric energy content to enhance the quality of gas through CO2 removal. This process is essential for alternative vehicle fuel and natural gas pipeline injection. Although chemical solvent scrubbing and pressurized water scrubbing are widely used biogas upgrading technologies, newer technologies have broken through that lower costs, decrease environmental footprint, and improve efficiencies. One such technology is membrane separation.


<h2>Achieve the highest possible biomethane yield</h2>
PurePac Compact by Bright Biomethane is a sustainable and compact biogas upgrading system. Its compressor and membrane separation mechanism are designed into one 40 ft. container, whereas the pre-treatment is situated outside the housing. It can be easily integrated with existing biogas plants from sewage sludge or food industry waste processing.

After the biogas goes through the pre-treatment unit, it is compressed to a required pressure, making it ready for membrane separation. Ideal for upgrading 65 to 400 Nm3/hr of biogas to biomethane, this modular biogas to biomethane system can be used for the production of vehicular fuel and gas grid injection. The system also offers the option of adding a CO2 recovery system for the production of food-grade carbon dioxide.

PurePac Compact enables operators to start and stop the machine at their convenience with virtually no wasted energy consumption and minimal methane loss.

Modular biogas to biomethane system

Membrane separation technology for biogas purification is considered as an effective alternative to combined heat and power system due to the decrease in electricity prices as well as in the demand for electricity and heat. Most importantly, the purified biogas production, also known as biomethane or renewable natural gas, utilizes the biogas produced from organic waste streams, which turns waste into energy. It is thus a sustainable solution to fossil fuels.


<h2>Ensures low maintenance costs and low energy consumption</h2>
A patented design by Bright Biomethane, PurePac Medium is an incredibly effective and relatively compact biogas upgrading system. The membrane separation modules are designed to fit inside a single 40 ft. container, while the compressor and pre-treatment mechanism are situated outside the housing.

Boasting a three-stage membrane arrangement, the system’s patented and innovative design achieves an incredibly efficient methane recovery of more than 99.5%, with a methane slip of less than 0.5%.  Since it uses highly selective membranes, with high separation efficiency, it is able to achieve the highest possible methane yield.

The membrane unit separates the gas by applying an imposed pressure difference over the membrane, which results in two different gas streams. One is a CO2-rich gas, and the other is a product gas that has a high methane value. The model is ideal for upgrading 400 to 1000 Nm3/hr of biogas to biomethane and can be used for the production of vehicle fuel or for gas grid injection. A CO2 recovery system can be added to the unit, enabling the production of food-grade carbon dioxide.

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Large-scale biomethane production system

Also referred to as biogas purification, biogas upgrading is an excellent alternative to a CHP (combined heat and power) system that generates heat and electricity. CHP’s are usually expensive and causes air pollution. However, a biogas upgrading system can turn your plant into a sustainable and profitable organization. You thus need a membrane separation technology which is able to upgrade biogas to natural gas quality by filtering out CO2 and other unwanted components.


<h2>Separates methane from biogas with more than 99.5% efficiency</h2>
PurePac Grand by Bright Biomethane is a sustainable biogas upgrading solution, ideal for large-scale biomethane production. The membrane separation modules are designed into a 45 ft. container, whereas the pre-treatment and compressor are situated outside the housing. You can also use this model as an indoor unit solution, but the pre-treatment will then have to be placed outside the building.

It is capable of upgrading over 1,000 Nm3/hr of biogas to biomethane, making it ideal for vehicular fuel production and gas grid injection. The unit can also be extended with a carbon dioxide recovery system for food-grade CO2 production, thus creating an additional source of revenue for plant owners.

The patented three-stage membrane separation process ensures that the biomethane is able to meet the requirements of specific applications. Operators can install a special heat recovery system for the production of high-temperature water.

Furthermore, the process does not require water or chemicals, eliminating any disposal problems and unforeseen costs. Lastly, it can produce biomethane from most types of biomass feedstock, including agricultural waste, manure, and municipal wastes and sludges.

Efficient sized biomethane production system

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Straw purification

Which straw purification equipment do you need?

Small-scale biogas upgrading system

Modular biogas to biomethane system

Large-scale biomethane production system

Efficient sized biomethane production system

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