More than 45 years developing engineering projects for industrial facilities in all technical specialties
Multi-sector experience with specialized engineering solutions for each industry
EIA21 has nearly 50 years of experience in the Oil & Gas sector, with strong specialization in downstream, refining, and complex industrial projects. We develop engineering and EPCM solutions for refineries, process plants, and industrial assets, optimizing efficiency, reliability, and operational costs.
EIA21 develops engineering solutions for renewable gases and decarbonization projects, with specialization in green hydrogen, biogas, biomethane, oxygen, and CO₂. We combine expertise in industrial processes and energy transition to design efficient, sustainable facilities tailored to new energy models.
EIA21 drives industrial decarbonization projects through engineering solutions focused on emission reduction, energy efficiency, and the integration of sustainable technologies. We combine industrial expertise, innovation, and technical feasibility to accelerate the transition toward low‑carbon production models.
EIA21 has extensive experience in power generation projects and electrical infrastructure, developing engineering solutions for both conventional and renewable technologies. We cover all project phases, from design to commissioning, ensuring efficiency, safety, and operational reliability.
EIA21 develops engineering solutions for wastewater treatment, desalination, demineralization, and industrial water reuse, designing efficient and sustainable systems aimed at optimizing water consumption, ensuring water quality, and meeting the most demanding environmental requirements.
EIA21 develops engineering projects for industrial plants across sectors such as steel and metallurgy, mining, glass, ceramics, pulp and paper, food, and cement. With nearly 50 years of experience, we drive technological modernization, energy efficiency, and process optimization through sustainable solutions and advanced digital tools.
EIA21 has extensive experience in engineering for chemical and petrochemical plants, developing highly complex industrial projects. We provide solutions focused on the design, modernization, and optimization of facilities, ensuring operational safety, process efficiency, and compliance with the most demanding environmental regulations.
EIA21 develops naval and offshore engineering projects for vessels and maritime infrastructure, providing solutions focused on safety, operational reliability, and performance optimization. Our experience includes the design, modernization, and supervision of naval systems in highly demanding marine environments.
EIA21’s R&D&I (Research, Development and Innovation) activities focus on developing innovative solutions for industrial engineering, integrating digitalization, automation, and advanced technologies to enhance the efficiency, sustainability, and competitiveness of industrial projects.
More than 40 years transforming industries with excellent engineering solutions
EIA21 participated in the development of a new electric furnace project for rock wool production, including the engineering associated with process line equipment, the comprehensive adaptation of existing facilities, and the construction of a new industrial building and batching plant.
Detailed Engineering, BIM and 3D design services for the North Field South (NFS) Desalination Plant in Qatar. EIA21 provides Electrical and Instrumentation & Control engineering for a 650,000 m³/day facility.
For more than 20 years, EIA21 has provided continuous engineering, construction, maintenance, and project management services for DOW’s industrial facilities in Tarragona. The scope includes multidisciplinary engineering, planning, quantity surveying, construction supervision, health and safety coordination, maintenance support, and site management services.
EIA21 participated in the development of the FEL, FEED, and Basic Engineering for a 720 MW renewable hydrogen plant in France. Based on alkaline electrolysis technology, the facility was designed to produce up to 144,000 Nm³/h of hydrogen with a purity exceeding 99.8%, supporting the expansion of Europe’s renewable gas infrastructure.
EIA21 delivered multidisciplinary engineering services for the Green Park 5 Anaerobic Digestion and Biomethane Production Plant in Italy, focusing on the integration of mechanical and electrical systems. Starting from the basic engineering phase, the project involved defining the main equipment and ensuring its seamless integration within the plant.
EIA21 developed a basic engineering study to analyze and improve the performance of the thermal oil circuit at the Eurosnacks production facility in Medina del Campo (Valladolid, Spain), optimizing heat distribution and increasing overall energy efficiency.
Engineering development for multiple gas liquefaction and treatment plants, including LNG, Bio-LNG, Liquefied Biomethane (LBM), Liquefied CO₂ (LCO₂), LPG, and condensate facilities across several international markets.
Owner’s Engineering, Construction Supervision, and Owner’s Representative services for the expansion of Haizea Wind’s offshore wind structure manufacturing facilities located at the Port of Bilbao (Zierbena, Bizkaia).
EIA21 developed the basic engineering and CAPEX estimation required to scale up a chemical recycling pilot plant based on plastic waste pyrolysis, enabling the production of recycled pyrolysis oil for circular economy applications.
Engineering services for the Alkimos SWRO (Seawater Reverse Osmosis) Desalination Plant in Australia, including mechanical equipment engineering, BIM coordination, and piping flexibility and stress analysis for one of the country’s most significant water infrastructure projects.
Implementation of a new Preflash Tower in Crude Unit 1, including associated distillation, condensation, pumping, and reflux equipment, aimed at improving refinery process energy efficiency and optimizing the recovery of light fractions.
Development of detailed engineering, 3D modeling, and BIM coordination for the desalination plant serving the North Field East (NFE) project in Qatar. The facility is designed to supply process water and utility services for one of the world’s largest natural gas liquefaction complexes.
Multidisciplinary engineering project for the replacement of a steam turbine with a 2.4 MW motor-drive system in an industrial compressor, including feasibility studies, detailed engineering, and procurement management within an Oil & Gas environment.
The i+CCM (Intelligent Motor Control Center) project was developed to research and create an innovative solution capable of providing intelligence, connectivity, and interaction through IoT technologies to the motor control centers that form part of industrial electrical systems.
Development of the detailed engineering package for the regulatory compliance upgrade, documentation update, and operational optimization of an ELT (End-of-Life Tyre) pyrolysis pilot plant located in Zaragoza, Spain. The project focused on adapting the facility to current European regulations while improving safety, operability, and the overall reliability of the plant’s waste-to-resource conversion process.
Development of detailed engineering and 3D modeling for the engine room, emergency generator room, and exhaust systems of the G028 fishing trawler, designed by Skipasýn ehf. and built by Astilleros Armón for Thorfisk A/S.
Development of Detailed Engineering for a new Liquefied Natural Gas (LNG) regasification plant in Brazil, designed to convert stored LNG into natural gas for industrial and energy applications, strengthening regional energy infrastructure and improving supply reliability.
EIA21 developed the detailed engineering required to diagnose and improve the leaching process of a catalyst recycling pilot plant, enhancing process reliability and operational performance.
Development of the Detailed Engineering package for the Lions Gate Wastewater Treatment Plant (WWTP), including Basic Engineering consistency analysis, definition of civil works requirements, and multidisciplinary coordination of process facilities and buildings.
Comprehensive engineering services (FEED, Detailed Engineering, and Owner’s Engineering) for a new 10,000 t/year TMQ production plant, including 3D design, construction supervision, and commissioning support within a highly demanding chemical manufacturing environment.
Development of the Detailed Outfitting Engineering for the Blue Eagle FPSO (Floating Production, Storage and Offloading), built for Blue Marine (Durandco Group). The project included the design and coordination of piping systems, steel outfitting, HVAC systems, and auxiliary services for an offshore unit dedicated to crude oil storage and processing.
Development of the detailed engineering package for the RESLAG Pilot Plant, located in Sestao (Bizkaia), aimed at recovering and utilizing residual heat generated in steelmaking processes. The project was part of a research and innovation initiative focused on improving energy efficiency and sustainability in the steel industry.
Development of detailed engineering for civil works and piping systems within the Balance of Plant (BOP) area, together with multidisciplinary construction supervision services for the Delayed Coker Unit (DCU) of the NAFTAN Refinery in Belarus.
Comprehensive engineering services for the implementation of a new Pressure Swing Adsorption (PSA) unit for hydrogen recovery and purification at the Muskiz Refinery. The project enabled the conversion of a low-purity hydrogen stream into high-purity hydrogen for reuse in hydrotreating processes, improving energy efficiency and resource utilization within the refinery.
Comprehensive engineering project for the replacement of steam turbine drives with high-power electric motors in the main compressors of the FCC (Fluid Catalytic Cracking) Unit at the Muskiz Refinery. The project modernized critical process equipment, increased the unit’s energy efficiency, and supported the electrification of strategic refinery assets.
Development of the Conceptual Engineering and FEL II package for a demonstration plant dedicated to the recycling of absorbent hygiene products, aimed at promoting circular economy solutions for waste treatment and material recovery.
Development of the conceptual engineering for the FLEXIPHO project, aimed at designing a flexible photobioreactor (PBR) for microalgae cultivation and the production of high-value compounds through the use of industrial gas streams and advanced lighting technologies.
Development of a new Boscalid Iso Water Moist production line at BASF’s industrial complex in Tarragona, one of the leading chemical manufacturing hubs in Southern Europe.
Replacement of 11 marine loading arms at Berths No. 2 and No. 3 of the Marine Terminal, including detailed engineering, procurement management, owner’s engineering, construction supervision, installation, testing, and commissioning activities.
Participation in the expansion and modernization project of the Cartagena Refinery, one of the largest industrial investments ever carried out in Spain. The project aimed to significantly increase crude processing capacity, improve operational flexibility, and expand the refinery’s product slate through the incorporation of new process units and supporting facilities.
Engineering development for the Termocentro Combined Cycle Power Plant, a 2×1 multi-shaft facility incorporating Siemens SCC6-5000F (60 Hz) technology with an installed capacity of 1,080 MW, located in Santa Teresa, Miranda State, Venezuela.
Development of the Mechanical Detailed Engineering for the Barcelona Metropolitan Area Desalination Plant, a strategic infrastructure designed to ensure drinking water supply through seawater reverse osmosis technology.
Engineering development, construction supervision, and owner’s engineering services for the adaptation of NAC Line 2 for Ammonium Nitrosulfate (NSA) production at the SEFANITRO plant. The project also included complementary works related to the modification of industrial facilities, utility systems, and infrastructure associated with the relocation and reorganization of production activities.
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EIA21 will be exhibiting at Stand D-10 within the BASQUENERGY Cluster area and participating in WORKinn and Innovation Workshops, reinforcing its commitment to innovation, engineering talent and the energy transition.
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Discover who we are, our services, industry sectors and a wide range of projects that reflect more than 45 years of experience delivering engineering solutions for industry.
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Discover how industrial electrification helps reduce emissions, replace fossil fuels, and improve energy efficiency through electric furnaces, high-power motors, and electric boilers.
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