SNG Mixers (LPG + Air) and biomethane enrichment systems (BioCH4 + LPG)
I-MAXIMUM is a manufacturer of energy-gas solutions for the industrial sector. We specialize in the production and delivery of precise gas blending installations that effectively replace the use of coal, heating oil, gas, and other fuels at our clients' facilities. Our systems contribute to the decarbonization of the industrial, heating, food, and many other sectors.
Our systems can simultaneously blend up to four types of gases, including biomethane, hydrogen, natural gas, LPG, CO₂, and nitrogen, allowing for the maintenance of the energy value of gaseous fuels (heating value) and a specified percentage of gas in the mixture.
We provide industrial gas blenders that enrich biomethane, biogas, biofuels, and natural gas by dosing bioLPG (propane or LPG).

Automatic SNG Blenders
Air and LPG Mixing System, MGA Series, by I-Maximum. The unique feature of the MGA series SNG automatic mixer is precision, safety, and reliability in mixing, achieved through the combination of two VORTEX flow meters (with volumetric measurement correction considering current temperature and pressure) and two electrically controlled Sliding Gate Valves for regulation.

Venturi Mixers (Propane-Air)
The Venturi SNG Blender (or LPG-Air Mixer) is a system in which LPG and air are mixed at low pressure (up to 450 mbar) in appropriate proportions, creating synthetic natural gas (SNG) at the system’s output with properties similar to natural gas. The system minimizes manual control and operates at low pressure with a system capacity of up to 350 Nm³/hour.

Mobile SNG Mixer
The Mobile SNG Mixing System (or LPG-Air Mixer) is a system where LPG and air are mixed at low pressure (up to 25 mbar) and low capacity (up to 90 m³/h) in appropriate proportions, creating synthetic natural gas (SNG) at the system's output with properties similar to those of natural gas.

Biomethan Mixers
The PROLIMIX® system from SCHARR TEC enriches biomethane by increasing its heating value through the addition of propane (LPG). The PROLIMIX® system is standardly available for biomethane flow rates of 350, 700, and 1200 Nm³/h. Models are also available with pressures up to 35 bar.

Mobile SNG MIXER Containers
The mobile SNG blending system (or LPG-air mixer) in a container combines LPG and air at a specified flow rate and pressure (up to 12 bar) and a capacity (up to 8500 m³/h) in precise proportions. This process produces synthetic natural gas (SNG) at the system's output, with properties similar to natural gas

Peak Shaving System
Peak Shaving systems enable precise dosing of gas mixtures, such as SNG and enriched biomethane, into the gas network, maintaining accurate proportions (e.g., 40% synthetic SNG and 60% natural gas).

GAS MIXING SYSTEMS
Anywhere, Anytime, Anything
Synthetic natural gas (SNG) is produced by blending air with LPG, which has a calorific value equal to that of methane (natural gas).
SNG gas mixture can be used in burners as a direct alternative to natural gas without the need for reconfiguration or replacement of the burner.



WHEN DO WE USE SNG
(PROPANE-AIR)?


Discontinuation of natural gas delivery

Gas pressure drop

Increase in natural gas pice

Decrease in calorific value
When we use SNG (Propane-AIR)?

SNG Mixers and Biomethane Enrichment Systems: Formula for a Sustainable Energy Future
The role of gas processing approaches is becoming increasingly crucial in the global energy sector, which is rapidly moving toward clean and sustainable sources of energy. With this background, gas blender systems in general, and SNG mixers together with biomethane enrichment systems in particular, take center stage as significant components for leveraging gas quality, ensuring compatibility with modern infrastructure, and easing the larger adoption of renewable energy. Further, we will review these technologies, their role, and their influence on current energy systems.
Gas Blender Systems
Gas blenders have been designed to mix various gases in accurate ratios to generate a uniform gas mixture that complies with certain quality specifications. Industrial gas mixer systems are applied in different industries that comprise chemical production, generation of electric power, and sustainable energy applications.
One of the high-priority objectives of gas mixing equipment is to produce a gas composition compatible with current pipeline facilities and fuel delivery systems. For instance, in areas where natural gas is complemented or substituted with hydrogen or biogas, a gas mixing system guarantees that the eventual mixture maintains combustion value and properties within reasonable bounds.
Up-to-date blending technologies employ cutting-edge sensors and control units to supervise such parameters as pressure, gas velocity, composition, and temperature in real-time mode. This allows for self-adjustment to mixture ratios, providing relevant gas quality even in cases when raw gas characteristics are inconstant. In many cases, a gas blender may integrate with the SCADA (Supervisory Control and Data Acquisition) system for distant diagnostics and supervision, optimizing operational efficiency and security.
SNG Mixers (LPG + Air)
SNG (Synthetic Natural Gas) is a replacement for traditional natural gas, usually generated from biomass, coal, or sustainable electricity via methanation processes. Natural gas air mixer, that is to say SNG mixer, is a complicated gas mixing system developed to blend various gas streams, including carbon dioxide and hydrogen, together with other hydrocarbons, to generate a gas mixture with specifications analogous to natural gas.
The employment of SNG mixers is increasing in importance because of their ability to decarbonize the gas-circulating system. For instance, hydrogen created from electrolysis, engaging sustainable electricity, can be blended with biogenic CO₂ in methanation reactors to produce renewable methane. This process, referred to as P2G (Power-to-Gas), is a successful approach to storing sustainable electricity and adopting it into the gas facility.
SNG blenders must be very accurate since any tiny deviation in gas characteristics can have an impact on associated equipment performance and emissions. Avant-garde SNG mixers feature sequential electronic fuel injection systems and feedback-controlled regulation to support strict tolerances. Moreover, they must be made from stuff appropriate to hydrogen, which can bring about embrittlement in some metals.
Biomethane Enrichment Systems (BioCH4 + LPG)
Biomethane is a superfine and ultra-clean form of biogas that has been processed to comply with the standards of natural gas. Feedstock biogas usually comprises 50-70% methane, with the balance containing mostly carbon dioxide and such trace pollutants as water vapor, hydrogen sulfide, and siloxanes. This biogas must be enriched before injection into the gas grid.
Biomethane enrichment system applies different technologies to get rid of impurities and optimize the methane concentration to more than 95%. Traditional techniques include PSA (Pressure Swing Adsorption), water scrubbing, chemical adsorption, and membrane separation. Each technique has its benefits when it comes to efficiency, cost, and appropriateness for various biogas compositions and flow rates.
For example, membrane separation is a commonly used technology taking into consideration its modularity and low electric power consumption. This method employs semi-permeable membranes to separate CO₂ from CH₄ based on diffusivity and molecular size. At the same time, the PSA method engages the selective adsorption of CO₂ and other pollutants onto adsorbent materials under high pressure, thus releasing refined methane during the phase of desorption.
After the biomethane is enriched, it can be mixed with natural gas employing gas blender technology or injected right into the pipeline. In addition, it can be liquefied to produce Bio-LNG or compressed to make Bio-CNG. Both of them may supplement and be alternative options to fossil fuels in the shipping sector.
Integration and Applications
The integration of the above-mentioned systems and technologies is significant for the creation of reliable and renewable energy infrastructures. In sustainable energy hubs, such technologies are combined together to maintain and deliver gas streams that align with regulatory standards and consumer requirements.
For instance, a biogas factory equipped with a biomethane enrichment system can supply sustainable methane into a gas distribution network. In case the methane content differs slightly or requires to be adjusted for combustion value, a gas mixing system performs precise corrections. Relatedly, in Power-to-Gas facilities, hydrogen received from excess wind or solar energy is transformed to SNG employing blenders and methanation reactors, supporting the balance of the electrical grid and storing power in a sound and transportable form.
Together with environmental advantages, these technologies offer economic benefits. They give opportunities for energy producers to make a profit from waste materials, decrease greenhouse gas emissions, and take part in the sustainable gas market.
Bottom Line
SNG mixers and biomethane enrichment technologies are crucial elements when it comes to the transition to a clean and resilient energy system. Nowadays, when countries look for ways to conform to climate security requirements and decarbonize their gas facilities, these technologies offer reliable solutions. Incessant investments and innovations in this field will be the linchpin that helps to achieve long-term sustainability in the worldwide energy sector.