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!
Green Hydrogen Geological Storage
A number of projects are underway all over the world to create or store hydrogen underground in natural caverns. Usually this requires density-managing gases, the cheapest of which is CO2, but the hardest to separate for regular membranes. We provide a far-above market performance for this type of storage as our H2/CO2 performance is unparalleled.
Hydrogen recovery at
plants
Divi-H can separate hydrogen out of difficult acidic off-gas, flue-gas and general hydrotreater/hydrocracker streams heavy contaminated with C4+ molecules, large amounts of CO2 and H2S and more. Better recovery and filtration in every refinery leads to better profits, better use of hydrogen resources, longer catalytic lifetimes and less emissions.
DiviGas Biomass & Waste
Gasification
Waste Gasification is the ultimate carbon-usage recycling next generation technology to close the loop. Gasifying waste into useful hydrogen also generates many undesirable gases that are very hard to separate from the hydrogen. DiviGas is unusually well suited to remove the vast majority of these impurities without the costly pre-treatment that is typically required from other membranes.
Carbon Capture at
hydrogen plants
DiviGas hydrogen separation membrane provides one extremely critical value to hydrogen plants (in and out of refineries) that are interested in carbon capture or general CCUS. Our separation retains *all* of the CO2 pressure, meaning no recompression is requried to send this carbon to storage, transport or usage, avoiding a major cost component of typical CO2 capture systems.
And many other uses - Ask us!
From Direct Reduction of Iron ore (DRI), to Gas pipelines to Pink hydrogen generation. We're open to every hydrogen separation out there. With proprietary simulation software, we can quickly tell you what our performance is against any streams, and you can judge for yourself what DiviGas can provide!
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
Get involved with DiviGas
To learn more and dive into the depth of what this product can do for you, please download our brochure below!
Latest News
Latest From DiviGas
Here is a sneak peak on us, catch us on Linkedin for the latest and most up to date news on DiviGas
DiviGas Closes Series Seed for $5m
https://techcrunch.com/2021/11/17/with-new-tech-and-3-6m-seed-divigas-aims-to-clean-up-hydrogen-production/
DiviGas featured in SOSV’s ‘Climate 100’
https://sosv.com/SOSV-climate-tech-100-list-2022
DiviGas Set to open first large scale manufacturing facility in Melbourne in 2022
Plant bound to validate field pilots with DiviGas’ many interested clients and partners
