Latest news & developments

Duiker will exhibit at the World Hydrogen Summit & Exhibition (9 + 10 May 2022)

After a succesfull introduction in Berlin, Duiker will present its Ammonia to Hydrogen Convertor on the World Hydrogen Summit 2022 in Rotterdam on 9 + 10 May. Please visit us at our boot E-8 or download our brochure from the following link.

Duiker Ammonia to Hydrogen Convertor explained in short

INTRODUCTION

The increasing global demand for renewable energy requires affordable, safe and reliable logistic chains. How can we transport, store and utilise renewable energy that is generated far away from its users economically, safely and reliably ? Ammonia (NH3) will play a crucial role in the global distribution of competitively produced green energy. Renewable electricity will be produced in locations with favourable conditions (wind and sun) and converted to E-fuels, such as ammonia, for long-distance transportation and (long term) storage in the area of the end users. Ammonia can be converted back to green hydrogen (H2) with the appropriate grade for a variety of energy applications. In these green energy uses, large scale conversion of renewable ammonia into ready-to-use hydrogen is key.

 

DUIKER AMMONIA TO HYDROGEN CONVERTER

In order to recover hydrogen from an ammonia feed, the ammonia is cracked into hydrogen and nitrogen over a catalyst. This reaction takes place at elevated temperature and is endothermic, thus requires heat input. Many sources could provide the necessary heat. However, the most advantageous source for this heat in a standalone application, both from technical and economic perspective, is the ammonia itself.

Duiker has the knowledge, experience and capability to utilize the ammonia as a fuel using our patented Stoichiometry-Controlled Oxidation (SCO) technology. The SCO
technology allows for complete combustion of ammonia with limited formation of NO
X 

Downstream of the cracking section, the hydrogen product is separated from the nitrogen at the required purity and delivered at elevated pressure. 

 

PROVEN TECHNOLOGY

Generating Hydrogen (H2) from ammonia (NH3) at an industrial scale is essentially a 3 step process.

1.      Generating the heat for the decomposition of ammonia (NH3) and transferring this to the process gas;

2.       Catalytic cracking of ammonia (NH3) to hydrogen (H2) and nitrogen (N2); and 

3.       Separating the product stream into pure hydrogen (H2) and recovering and reutilizing the tail gas.

 

Duiker has combined three industrially mature technologies to make this happen. This mitigates risks and makes it possible to achieve the very high standards we set for reliability  or plant availability.

 

HIGHEST EFFICIENCY, LOWEST OPEX

Because we reuse most of the heat that is used in the process as well as the tail gas from gas separation to generate heat, in combination with the a small part of the ammonia (NH3) feedstock, we achieve a conversion efficiency of more than 95% (on enthalpy basis). Additionally, the only energy we utilize is the electricity required to bring the product to the  desired pressure. In this way, we can generate the lowest OPEX per ton of hydrogen produced. Finally, as the plant is modularized and is based on exiting operational and safeguarding philosophies, the operation is a breeze.

 

EMMISSIONS

By utilizing our SCO technology to generate the heat required by the process, we can guarantee a stack emission level of <100 ppm NOX and zero CO2. Therefore, all the hydrogen (H2) we produce from green ammonia (NH3) is green hydrogen, pound for pound.

 

IN SUMMARY

1.       Industrially demonstrated technology

2.       High reliability

3.       Conversion of >95%

4.       Lowest OPEX

5.       Zero CO2

Low emissions

Download our brochure from the following link.

Duiker present at H2 Forum (4 + 5 April 2022)

We will exhibit our ammonia to hydrogen convertor on the H2 Forum 2022 in Berlin on 4 + 5 April. Please visit us at our stand no. 57 or download our brochure from the following link.

Duiker in Nitrogen Syngas Magazine (May-June 2020)

Nitrogen+Syngas published an article on reducing industrial carbon footprint with Duiker’s Stoichiometry Controlled Oxidation (SCO) technology  in their May-June 2020 issue. The article can be downloaded from the following link.

Nitrogen+Syngas is the magazine for the nitrogen and syngas industries, which is released bi-monthly by BCInsight Ltd. More information regarding the magazine can be found here.

Duiker in Sulphur Magazine (March-April 2020)

Sulfur magazine published an article on Duiker’s ammonia combustion technology with our innovative SCO design in their March-April 2020 issue. The article can be downloaded from the following link.

Suplhur is the magazine for the sulphur and sulphuric acid industries, which is released bi-monthly by BCInsight Ltd. More information regarding the magazine can be found here