DIVIGAS
Product & Use cases

product

A Hydrogen Revolution

Membranes for hydrogen recovery & purification have been in use in industrial processes since the 1980s. However, they have lacked several attributes which limited their use in many cases. Plasticization, chemical degradation, and fouling caused by CO2 H2S, and heavy hydrocarbons have limited many of the possible applications for H2 -selective membrane due to the high costs of pre-treatment.

Thanks to a combination of patent-pending materials, revolutionary sub-nano molecular polymer modification techniques, and manufacturing advancements , DiviGas has invented a membrane fiber that can finally bring this clean technology to market and replace complex, energy-intensive, and toxic sorbent-based alternatives

Divi-H Apart

What Sets Divi-H Apart

Heavy Hydrocarbon
Fouling Solved

As H2 is removed from the pressurized feed, the gas becomes enriched in condensable hydrocarbons and its dew point increases, resulting in fouling. At higher temperatures, dramatically higher concentrations is required for fouling.

Tolerates the highest level of Heavy
Hydrocarbons

Divigas can operate at up to 150c, up from 50-70c for most comparable membranes in this space. Opening up an array of use cases containing heavy hydrocarbon-loaded streams

Extreme Acidity
Resistance

Membranes degrade when subjected to acidic conditions and strong solvents. The polymeric chains break, leaving larger-than-designed perforations which causes failure and up to complete performance loss.

Can Withstand much more difficult
conditions

The only way for membranes to be able to handle these sort of streams today is with extensive pre-processing with sorbents, which often invalidates the unit economics and entire purpose of using membranes

High Heat Tolerance Results
in High Performance

Our highest-in-the-industry heat tolerance results in excellent H2 selectivity and permeance and overall performance. This simply means a single strand of fiber can do better filtering, resulting in affordability in volume.

Best in Class efficiency

CO2 is typically regarded as one of the hardest gas to separate from H2 because most membranes use a process called solution-diffusion which is ineffective at separating these molecules. We use other mechanisms which yields a far better outcome for H2/CO2

cases

Use Cases

DiviGas enables membranes to enter areas where the only possible technology previously was catalytic and chemical separation
Some of these are described below, but more use cases are coming on the market everyday!

Feed & output

Quick Comparison of Separation Technologies

DiviGas Other Membranes PSAs
H2 Purity 93-99.95% 90-98% 99.99%+
H2 recovery 85-98% 85-95% 75-92%
H2 Product Pressure Lower than feed pressure Lower than feed pressure Feed Pressure
Feed Pressure 75-2300 psig 300-2,300 psig 15-600 psig
H2 Feed Content Required 10-90% >25-50% >40%
Residue Capability Residues together - full pressure Residues together - full pressure pressure Residues individualized at 1 bar
Pretreatment Requirements None CO2/H2S/C4+ Removal None / light
Capital Cost Low Low Medium
Physical Footprint Smallest Small Large
Operating Temperature (C) 20-150 20-50 20-35
Maintenance 20-150 Low High
Environmental friendliness Clean Clean Toxic Chemical Waste

The above was modified from a public AirProducts document on H2 separation membranes

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