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10 key things you need to know about the Dos Bocas Refinery

Published 9.4.2024

Techint Engineering & Construction is in charge of building and commissioning five plants, which will allow Mexico to achieve energy self-sufficiency.


The Dos Bocas Refinery is an emblematic project being built in the port, in the municipality of Paraíso, Tabasco. Without a doubt, it is the most important infrastructure work built in Mexico over the last 40 years. It will have an installed refining capacity of 340,000 barrels per day of gasoline and petroleum products.

Below are ten 10 facts about this work:

1. First project assigned

In June 2020, Techint Engineering & Construction began work on the building of Refinery Package 4, including three key plants for the refining process:

· Sour Water Stripper where H2S and NH3 are removed and the sour water “sweetened”.

· Amine Regeneration Unit where acid gas, hydrogen sulfide and carbon dioxide are removed from natural gas and liquid hydrocarbons.

· Effluent Treatment Plant to collect, condition and treat the water used, as well as the rainwater collected at the refinery.


2. Construction of the heart of the refinery

At the beginning of June 2021, the company embarked on the second project of this work, to build two plants considered the heart pumping energy to the entire refinery:

· Cogeneration Plant with a 342-MW generation capacity, enough to power 112,860 homes.

· Water Pretreatment Plant to condition raw water and replenish the water provided to the cooling towers, in addition to treating it for use by various other services.


3. Historic job creation levels

Since the beginning of the work, Techint E&C has created over 15,600 jobs, a figure close to the number of people who work directly and indirectly for the Volkswagen plant in Puebla, Mexico. At the peak of activity, there were 7,000 people working at the site, almost the same as the number of employees working at the TenarisTamsa Industrial Center in the state of Veracruz.

4. Promotion of national talent

99% of the over 15,000 workers hired are Mexican; 8% are women and 36% are from the state of Tabasco, where the refinery is being built.


5. Positive impact on the community

The process to build and commission the plants has benefited 5,400 inhabitants from Paraíso, Tabasco, some 21% of the municipality's population, with social programs demonstrating Techint E&C's commitment to the communities where it operates.

In Paraíso, the company held its Volunteers in Action program, refurbishing three primary schools and reconditioning two public parks. Also, Twenty Health Days were held in this city for over 1,400 inhabitants. From March 2022 to January 2024, over 3,000 basic medications were provided and 992 medical consultations held.

In collaboration with the Technological University of Tabasco, three Welding Courses were held for 45 students aimed at strengthening training in the community and improving people’s employability level. 57% of the students trained subsequently joined the company to work at the Dos Bocas and Pesquería projects.

6. Creating a value chain

Since the start of this project, the company has contracted 850 suppliers, 92% of which are of Mexican origin, fostering the creation of a national value chain.


7. Deployment of materials and equipment

The work employed 7,000 tons of pipe, almost 9,000 tons of metal structures (40 times the weight of the Statue of Liberty in the United States) and over 17,000 tons of mechanical equipment (almost double the weight of the Eiffel Tower in Paris, France).

Some 129,000 cubic meters of concrete were poured (38 times the capacity of an Olympic swimming pool), and more than 2,000,000 linear meters of wiring were laid (almost 10 times the length of the entire network of the Collective Metro Transportation System of Mexico City).

8. Construction in record time

One of the main challenges of the Dos Bocas Refinery projects are delivery schedules. This was the reason why Techint E&C built a Prefabricated Piping Workshop just 60 kilometers from the port, enabling it to streamline processes and improve materials control and traceability.


9. Engineering development and training

The company's engineers invested more than 1.3 million labor-hours in developing the engineering for the five plants, and trained 1,360 employees to perform different activities.

10. Commitment to safety

During the construction and commissioning phase, from end-2021 to early 2023, the project notched up 10.5 million hours without any accidents with lost days, thanks to the strong safety culture that has been implanted throughout the projects.

When this emblematic work, contemplated in the National Refining Plan, is complete, the expectation is for Mexico to be able to reduce its dependence on fuel imports from the United States, spurring it to achieve self-sufficiency in the production of gasoline and diesel.

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