Servicio para el estudio de ingenierýa para la optimizaciýn de las unidades: recuperadora de azufre, de tratamiento de gas de colas, de tratamiento con amina y de tratamiento de aguas amargas de la Refinerýa Francisco I. Madero para cumplir la norma oficial mexicana NOM-EM-148-SEMARNAT-2006 sobre recuperaciýn de azufre en refinerýas.

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