Pumping-Type Hydrogen Eliminator (DHP)

Home Pumping-Type Hydrogen Eliminator (DHP)

Safe Hydrogen Elimination with Low Energy Consumption

Hydrogen has a flammable range of 4% to 75% concentration in air. Traditional methods for treating discharged hydrogen mainly rely on combustion or dilution, both of which have limitations in terms of safety, environmental impact, and energy efficiency.

Toplus’ DHP Pumping-Type Hydrogen Eliminator is developed based on Low Temperature Hydrogen Oxidation, LTHO, technology. It safely converts hydrogen into water under flameless conditions, achieving hydrogen elimination with zero CO₂ and NOx emissions.

The system introduces exhaust gas into a reactor designed and manufactured by Toplus. Inside the reactor, hydrogen undergoes an oxidation reaction under low-temperature and flameless conditions. This effectively reduces hydrogen concentration to below 4,000 ppm, with an overall Destruction and Removal Efficiency, DRE, of over 98%.

At the same time, the heat released during the reaction can be recovered and reused, further improving overall energy efficiency and reducing system operating costs.

The DHP series adopts a modular design and can be flexibly expanded according to different exhaust flow rates. Combined with real-time electronic control and monitoring systems, DHP provides a hydrogen exhaust treatment solution that integrates high safety, environmental performance, and energy efficiency.

Performance Test：
According to test reports from Industrial Technology Research Institute ( ITRI), DHP maintains stable and excellent treatment performance under various hydrogen concentration conditions:
• Destruction and Removal Efficiency, DRE: > 98%
• Residual hydrogen concentration: < 4,000 ppm

Heat Recovery Benefits：
The heat generated during hydrogen oxidation can be recovered and reused to further improve overall system energy efficiency.

For example, when the hydrogen treatment flow rate is 45 m³/h, approximately 745,000 kWh of heat energy can be recovered annually. This is equivalent to reducing approximately 373 tons of CO₂ emissions, with a carbon reduction benefit close to the annual carbon absorption capacity of Daan Forest Park.

DHP operates by using a catalyst to facilitate the oxidation reaction between hydrogen and oxygen in the air, converting hydrogen into water vapor.
The system operates under near water-vapor-saturated conditions, which helps stabilize the reaction and enhance overall operational safety.
The entire reaction process takes place under flameless conditions, produces no CO₂ or NOx, and requires low energy consumption, delivering both high safety and environmental benefits.

Flameless Hydrogen Exhaust Treatment

Safely eliminates hydrogen discharged from process pipelines without flame combustion
Hydrogen elimination solution with zero CO₂ and NOx emissions
Single-unit hydrogen treatment capacity up to 100 CMH
Supports heat recovery for both safety and operational efficiency