Synthetic Natural Gas (SNG) Products

Need a back-up for your natural gas?

Packaged systems from Algas-SDI do it all.

Synthetic Natural Gas (SNG)

Packaged SNG Systems

Much like a generator for electricity back-up, ASDI’s Packaged (propane-air) Systems provide a complete solution for backing up Natural Gas. Simply connect to the fuel storage vessel and the natural gas piping feeding the process load. Systems sizes range from 5MMBtu/hr to more than 1Billion Btu/hr. Industrial systems are designed and manufactured in accordance with NFPA 58 while municipal utility systems are designed and manufactured in accordance with NFPA 59. Most models and packages carry third party listings (Factory Mutual) for ease of local acceptance.

Synthetic Natural Gas systems can be used to augment or completely replace piped natural gas, compressed natural gas or liquefied natural gas to manage outages, interruptions in supply or to capture price advantages between different fuel types. Algas-SDI manufactures a complete range of natural gas replacement systems for industrial and municipal applications, including hospitals, schools, military bases and emergency shelters. Large utility systems are designed and manufactured for LDC peak load shaving after the city gate. Systems can be supplied in either high or low pressure configurations with high pressure systems requiring a compressed air source.

Packaged SNG

XPV Packaged Propane-Air Mixing System

XPV systems are self contained units that provide a natural gas compatible mixture of propane and air or LPG vapor and air.

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Packaged SNG

QM Packaged Propane-Air Back-Up System

The QM natural gas replacement system is a combination gas fired waterbath LPG vaporizer and atmospheric venturi LPG/air mixer.

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Synthetic Natural Gas (SNG)

Gas-Air Mixers

Algas-SDI Gas-Air mixers are designed and manufactured for industrial and utility applications using the highest quality materials and components. Decades of experience and a focus on continuous improvement have led to the most reliable and durable mixers available today.

World-wide applications include propane-air or LPG-air mixing for natural gas replacement, coal gas and coke oven gas replacement, and digester gas augmentation or replacement. Standard packages are set up for natural gas replacement using propane or LPG. Other gas mixtures can be accommodated with configuration options. Most models are available in compliance with European directives — PED and ATEX marked where required. All standard models are FM approved.

Consta-MIX Natural Gas Air Mixing System

SNG Gas-Air Mixers


Algas-SDI VAPORAIRE mixers use propane or LPG to create a synthetic natural gas mixture by entraining air and gas through a venturi and diffuser set.

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SNG Gas-Air Mixers


Algas-SDI BLENDAIRE mixers accurately mix 2 gas streams at pressures up to 250 PSIG.

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Synthetic Natural Gas (SNG)

Additional SNG Products

SNG Products

Liquid LPG Pumps


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SNG Products


Algas-SDI Accessories

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OUR AIM: The innovative application of reliable clean-energy systems for commercial, industrial and utility customers.

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Algas-SDI We make transportable fuel gases easier to use.

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