Our company has independently designed and improved the process flow to recover hydrogen gas from the air released from traditional ammonia synthesis and ammonia tank venting, and then return it to the production ammonia system or further purify it into high-purity hydrogen, achieving the goal of increasing production and reducing consumption. As a hydrogenation product, the purity of hydrogen gas reaches 90% to 99.9%.
Membrane separation hydrogen recovery technology
Mainly used in synthetic ammonia plants: methanol purge gas recovery hydrogen device, returns the recovered hydrogen to the methanol system to achieve the goals of increasing production, reducing consumption, and optimizing indicators, with a hydrogen recovery rate of 85-90%; The purity of hydrogen gas reaches 90% to 99.9%.
Mainly used in methanol plants: membrane separation and purification of carbon monoxide unit, membrane separation of hydrogen/carbon monoxide rich mixed gas under certain pressure can increase the purity of carbon monoxide in the gas to 95-99.9%. The operating cost of the unit is low (compared with pressure swing adsorption for CO purification), the operation is simple, and the technology is mature and reliable.
Membrane Separation Technology and Hydrogen Recovery
Membrane separation technology, as an efficient and environmentally friendly separation technology, has broad application prospects in the field of hydrogen recovery. This technology separates and recovers hydrogen gas through specific membrane materials, achieving efficient recovery and reuse of hydrogen gas. In the context of global pursuit of energy conservation, emission reduction, and sustainable development, the recycling and reuse of hydrogen as a clean energy source is particularly important.
Key factors affecting hydrogen recovery efficiency
The efficiency of membrane separation technology in hydrogen recovery is influenced by various factors, among which membrane materials, operating conditions, and hydrogen concentration are key factors.
- Membrane material: The performance of membrane material directly determines the efficiency of hydrogen recovery. At present, researchers are continuously developing new membrane materials to improve the diffusion rate and selectivity of hydrogen gas, thereby enhancing the recovery efficiency.
- Operating conditions: Operating conditions include temperature, pressure, flow rate, etc., which can affect the diffusion rate and selectivity of hydrogen molecules in membrane materials. By optimizing operating conditions, the efficiency of hydrogen recovery can be further improved.
- Hydrogen concentration: The higher the hydrogen concentration, the higher the recovery efficiency. Therefore, in practical applications, increasing the hydrogen concentration can improve the recovery efficiency. This can be achieved by preprocessing the mixed gas or adjusting the process flow.
Advantages and Prospects of Membrane Separation Technology
Membrane separation technology has the advantages of easy operation, low energy consumption, and environmental protection, and has broad application prospects in the field of hydrogen recovery. With the continuous development and optimization of membrane materials, as well as the continuous improvement of operating conditions, membrane separation technology will play a greater role in the field of hydrogen recovery. In the future, with further technological maturity and cost reduction, membrane separation technology is expected to become one of the mainstream technologies for hydrogen recovery.
In summary, membrane separation technology has demonstrated high efficiency in hydrogen recovery, with a recovery efficiency of up to 99%. By conducting in-depth research on factors such as membrane materials, operating conditions, and hydrogen concentration that affect hydrogen recovery efficiency, guidance can be provided for practical applications, promoting the continuous development and optimization of hydrogen recovery technology.