Duiker Combustion Engineers

What Duiker Combustion Engineers does

Duiker Clean Technologies (formerly Duiker Combustion Engineers) is a privately held Dutch specialist engineering company founded in 1919, headquartered in Wateringen near The Hague with a Beijing office. It designs, engineers and delivers proprietary thermal process equipment for two tightly linked solution areas: Sulphur Solutions (LMV burner technology, Stoichiometry-Controlled Oxidation / SCO units, complete Sulphur Recovery Units including main burner, reaction furnace and waste heat boiler, and thermal oxidation systems) and Clean Energy (Ammonia Cracker / AHC, Ammonia Fueled Boiler / AFB, PSA hydrogen purification, and the forthcoming AMMONEX pilot). The Reducing Emissions business adds CFD modelling, process optimization studies, on-site emission measurements and advisory consulting. The proprietary technology stack centres on LMV high-intensity mixing burner technology (commercial since 1961, 2,500+ global references) and SCO two-stage ammonia combustion (commercial since 2009), with 18+ years of low-NOx ammonia expertise now extended into cracking for the hydrogen economy; performance specifications include >99.5 vol% H2S conversion, >90% ammonia conversion, >99.97% hydrogen purity for cell-grade H2, 0 ppm scope-1 CO2 and 5 ppm NOx.

The revenue model combines custom-engineered one-time equipment supply, a recurring aftermarket services stream (spares, installation supervision, training, retrofits, optimization studies), and process technology licensing of proprietary SCO and ammonia-cracking IP. Customers are enterprise refineries, gas processing plants and bio-fuel facilities in the energy sector that must convert toxic H2S into elemental sulphur feedstock for fertilizers while complying with stringent SO2/NOx regulations, plus emerging hydrogen-economy customers seeking CO2-free ammonia-to-hydrogen conversion. Go-to-market is a hybrid of direct sales from the Netherlands and Beijing offices and a selective global distributor/representative network spanning 15+ countries across Latin America, South/Southeast/East Asia and the Middle East.

Name

Duiker Combustion Engineers

Legal name

Duiker Combustion Engineers B.V.

Website

https://duiker.com

Company type

Private

Founded year

1919

Operating status

Operating

Headcount range

101–250 employees

Short description

Duiker Clean Technologies is a Dutch privately held specialist engineering firm (founded 1919) that designs proprietary thermal process equipment including LMV burners, SCO ammonia combustion units, Ammonia Crackers and Ammonia Fueled Boilers, serving refineries, gas processing plants and hydrogen-economy customers across more than 15 countries via direct sales and a selective global distributor network.

Ownership category

akta.pro rank

Product category

Industrial Combustion Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)

SIC

Industrial Process Furnaces & Ovens (3567), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Emissions Controls & Environmental Retrofit Services (SCR/FGD/ESP, CEMS) (EUAEALAL)

akta.pro secondary industries

Industrial Process CHP (Refineries, Chemicals, Pulp & Paper, Metals) (EUACAKAI), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Waste Heat Recovery & Heat Integration (HRSG/ORC, Pinch Analysis, Heat Exchangers) (EUABAJAF)

Keywords

• Sulphur recovery units
• Ammonia cracking systems
• Thermal oxidation equipment
• Clean hydrogen production
• Process combustion technology

Headquarters

HQ city

Wateringen

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Equipment Supply and Systems: Supply of core equipment with controls and instrumentation for sulphur recovery units and ammonia conversion systems. All engineered solutions are customized and tailored to customer needs.
2. Aftermarket Services and Consulting: Lifetime operational support with parts, consulting services, on-site installation supervision, training, process optimization studies, CFD modelling, and on-site emission measurements.
3. Process Technology Licensing: Licensing of proprietary process technologies including SCO units and ammonia cracking technology for industrial applications.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Duiker designs, develops, and delivers industrial combustion equipment and thermal process systems, specializing in Sulphur Recovery Units (SRU), proprietary ammonia-to-hydrogen conversion systems (Ammonia Cracker/AHC), ammonia-to-heat systems (Ammonia Fueled Boiler/AFB), and thermal oxidation systems. The company supplies engineered, custom-made equipment and provides aftermarket services, process optimization, CFD modelling, and emission reduction consultancy to refineries, gas processing plants, and hydrogen economy stakeholders worldwide.

Product overview

Duiker Clean Technologies (formerly Duiker Combustion Engineers) offers a portfolio of thermal process technologies organized into three solution areas: Sulphur Solutions, Clean Energy, and Reducing Emissions. The core product line includes the LMV Burner technology for sulphur recovery units (SRU), the proprietary Stoichiometry-Controlled Oxidation (SCO) unit for ammonia-rich combustion, and the Ammonia Cracker (AHC) system for converting ammonia to hydrogen. The Ammonia Fueled Boiler (AFB) extends clean energy offerings to ammonia-to-heat conversion. Supporting sub-products include Pressure Swing Adsorption (PSA) units for hydrogen purification and Oxygen Enrichment Burners for enhanced SRU operations. Services encompass emission reduction consultancy, process optimisation, CFD modelling, and comprehensive aftermarket support including spare parts and plant upgrades.

Differentiator

Problem solved

Functional benefit

Products and services

• LMV Burner (Luynet Multiple Vortex) High-intensity burner technology for Sulphur Recovery Units (SRU) with extremely high mixing characteristics, enabling conversion of H2S to elemental sulphur in refineries and gas processing plants.
• Stoichiometry-Controlled Oxidation (SCO) Unit Proprietary two-stage ammonia combustion system with dynamic control for staged combustion, minimizing Nitrogen oxides (NOx) emissions while maximizing ammonia conversion efficiency.
• Ammonia Cracker (AHC) Industrial ammonia cracking system converting ammonia to hydrogen and nitrogen, integrating SCO combustion, advanced cracking reactor, and PSA gas separation to achieve >90% conversion efficiency, 0 ppm CO2, and >99.97% H2 purity.
• Ammonia Fueled Boiler (AFB) Ammonia-to-heat conversion system using ammonia as direct fuel for steam or power generation, supporting the transition to cleaner energy sources.
• Sulphur Recovery Unit (SRU) Equipment Complete thermal stage systems including Main Burner, Main Reaction Furnace, and Waste Heat Boiler for refineries and gas processing plants to convert H2S into elemental sulphur.
• Thermal Oxidation Systems Emission control systems for effective destruction of contaminants in acid gas streams, ensuring regulatory compliance and preventing harmful emissions in industrial processes.
• Pressure Swing Adsorption (PSA) Unit Gas separation system integrated within the Ammonia Cracker that removes impurities and produces high-purity hydrogen at high pressure (50 bar g) without recompression.
• Oxygen Enrichment Burners LMV burner technology adapted for oxygen-enriched combustion air (21-45 mol% O2) to boost SRU throughput by up to 20-25% and improve conversion efficiency without major modifications.
• AMMONEX Pilot Installation CO2-free hydrogen production technology showcase at Port of Rotterdam, converting ammonia to hydrogen at industrial pilot scale with zero scope 1 CO2 emissions.
• Emission Reduction Consultancy Services Process monitoring, flue gas measurement, CFD modelling, process optimisation studies, and advisory consulting services for emission reduction and regulatory compliance.
• Aftermarket Services Lifetime operational support including spare parts, on-site installation supervision, training, retrofit and plant upgrade support, and expert modelling studies for Duiker units.

Quantifiable outcome

• More than 99.5% of H2S feed can be converted
• +5 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered flagship and core.

• Plant OneflagshipStrategic or Co-development Partner · 4 February 2026Strategic partnership for AMMONEX pilot installation at Port of Rotterdam. Plant One provides testing ground for innovative and sustainable process technologies. Agreement marks important step in realization of AMMONEX - Duiker's CO2-free hydrogen production technology showcase.
• Port of Rotterdam AuthorityflagshipStrategic or Co-development Partner · 4 February 2026Strategic partner for AMMONEX project. Director Energy Mark Stoelinga: 'Projects like AMMONEX are essential for building new sustainable energy value chains, such as the import of green hydrogen. They strengthen the port's international position.' Project aligns with European Hydrogen Backbone and Port of Rotterdam's hydrogen ecosystem.
• CONISAcoreChannel Partner/ Reseller/ DistributorArgentina distributor and representative. Contact: mr. Juan Minvielle. Represents Duiker in the Argentinian market for sulphur recovery and clean energy solutions.
• EngezercoreChannel Partner/ Reseller/ DistributorBrasil distributor and representative. Contact: mr. Sergio Ferreira. Represents Duiker in the Brazilian market.
• Indus ConsultingcoreChannel Partner/ Reseller/ DistributorIndia distributor and representative. Contact: mr. Mahesh Dasture. Represents Duiker in the Indian market for process technology solutions.
• United Technic IndonesiacoreChannel Partner/ Reseller/ DistributorIndonesia distributor and representative. Contact: mr. Stephen Limurti. Represents Duiker in the Indonesian market.
• Seasons EnergycoreChannel Partner/ Reseller/ DistributorJapan distributor and representative. Contact: mr. Shigeki Maeda. Represents Duiker in the Japanese market.
• Tanajib for TradingcoreChannel Partner/ Reseller/ DistributorK.S.A. (Saudi Arabia) distributor and representative. Contact: mr. Mohammed Al-Naimi. Represents Duiker in the Saudi Arabian market.
• AIMScoreChannel Partner/ Reseller/ DistributorMulti-country distributor and representative for Kuwait, Oman, Qatar, and U.A.E. Contacts: mr. Nasir Ahmed Juddy (Kuwait), mr. Maaz Ahmed Shareef (Oman), mr. Bader Ansari (Qatar), mr. Zaheer Juddy (U.A.E.). Major Gulf region partner network.
• STKcoreChannel Partner/ Reseller/ DistributorRepublic of Korea distributor and representative. Contact: mr. Sung Hyun Park. Represents Duiker in the South Korean market.
• LySun Chemical Int.coreChannel Partner/ Reseller/ DistributorTaiwan ROC distributor and representative. Contact: mr. Sky Lin. Represents Duiker in the Taiwanese market.
• IVA ProcessPluscoreChannel Partner/ Reseller/ DistributorThailand distributor and representative. Contact: mr. Eagarat Chaiyarit. Represents Duiker in the Thai market.
• OMIS IndustriescoreChannel Partner/ Reseller/ DistributorTurkey distributor and representative. Contact: mr. Cenk Güner. Represents Duiker in the Turkish market.
• Sistemas G. ControlscoreChannel Partner/ Reseller/ DistributorVenezuela distributor and representative. Contact: mr. Jorge Gamboa. Represents Duiker in the Venezuelan market.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Haldor Topsoe (Topsoe): Topsoe is a direct competitor in sulphur recovery catalysts/process technology and a major player in ammonia and hydrogen process technologies. Both companies serve refineries and gas processing plants with proprietary process units and compete for the same hydrogen economy opportunities.
• Zeeco: Zeeco designs and manufactures combustion equipment including burners, flares, and thermal oxidizers for the refining, petrochemical, and gas processing industries. Directly comparable to Duiker's LMV burner and thermal oxidation product lines serving the same SRU and emissions-control use cases.
• John Zink (Koch Engineered Solutions): John Zink is a global supplier of combustion and emissions-control equipment including burners, flares, and thermal oxidizers for refineries and petrochemical plants. Overlaps directly with Duiker's SRU burner and thermal oxidation portfolio and competes for the same refinery capex spend.
• Fives Group (Pillard): Fives, through its Pillard brand, is a major supplier of burners and combustion systems for industrial applications including sulphur recovery and process heaters. Comparable product portfolio to Duiker's LMV burner range with similar refinery customer base.
• CECC (Combustion Engineering & Controls): CECC supplies industrial burners, process combustion systems, and emissions-control equipment for refineries and petrochemical plants. Closely comparable niche specialty combustion engineering firm competing with Duiker's LMV and SCO burner offerings.

Broad incumbents

• Honeywell UOP: Honeywell UOP is a dominant licensor of refining process technologies including sulphur recovery (Claus, SCOT, etc.) and emerging hydrogen/ammonia technologies. Larger incumbent competing in the same SRU equipment and process licensing space, but with a much broader refining technology portfolio.
• Air Products and Chemicals: Air Products is a global industrial gases and hydrogen producer investing heavily in blue and green hydrogen infrastructure. Adjacent competitor in the ammonia-to-hydrogen value chain with much greater scale and project execution capability, though its focus is on gas production and infrastructure rather than cracking technology licensing.
• MAN Energy Solutions: MAN Energy Solutions supplies large-bore gas engines and turbines for power generation and mechanical drive, including hydrogen/ammonia-ready platforms. Adjacent incumbent in industrial process power and emerging as a competitor/partner for ammonia-fueled heat and power applications relevant to Duiker's Ammonia Fueled Boiler.
• Amec Foster Wheeler (now Wood): Wood (formerly Amec Foster Wheeler) is a major EPC contractor for refineries, gas processing, and emerging hydrogen/ammonia facilities. Competes with Duiker at the project integration level for SRU and hydrogen facility builds where Duiker typically supplies the proprietary burner/cracker skids.

Emerging players

• Bloom Energy: Bloom Energy produces solid oxide fuel cells that can run on hydrogen, ammonia, and other fuels, representing an alternative demand pathway for clean hydrogen/ammonia. Indirectly comparable as an emerging player in the clean energy ecosystem where Duiker's hydrogen production technology feeds end-use applications.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInnl.linkedin.com/company/duiker
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Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Duiker Combustion Engineers