05-06-2026 procesos petroquímicos uno

Class Discussion on Urea and Its Historical Significance

Class Attendance and Schedule

• The class attendance was low, with some students unaware that there were no classes scheduled for the day.

• Clarification was made regarding the class schedule; it continues on Wednesdays instead of Thursdays.

Introduction to Urea

• The previous class focused on an introduction to urea, including its semi-structural formula.

• Urea is noted as the first organic compound synthesized from natural sources, a fact that surprised some students.

Historical Context of Urea Synthesis

• Friedrich Wöhler synthesized urea in 1828 by reacting silver cyanate with ammonium chloride, marking a significant moment in chemistry.

• Prior to this synthesis, the prevailing belief (vitalism) held that organic compounds could only originate from living organisms.

Vitalism and Its Implications

• Vitalism posited that living organisms possessed unique properties distinguishing them from non-living matter.

• This philosophical view influenced scientific thought until Wöhler's experiment challenged these notions by demonstrating synthetic organic chemistry.

Urea Production and Measurement Techniques

Storage and Production Insights

• A description of urea storage facilities was provided, highlighting large quantities produced at specific sites.

Measuring Urea Quantities

• The height and angle of urea piles are measured using a theodolite, which helps determine production volumes accurately.

Understanding Granulometry in Measurement

• The density and granulometry of urea granules affect measurement accuracy; specialized equipment is used for precise calculations.

Understanding Urea Production and Plant Operations

Introduction to Urea Production

• The discussion begins with a request for clarification on the relationship between angle, gravity, and density in urea production.

• A participant mentions difficulty in finding relevant information online regarding the specific angle related to urea production.

Equipment and Structures in Urea Production

• The speaker explains that the amount of urea produced is measured using a teodolite, which determines the height of structures involved in production.

• A three-dimensional triangular structure is described, emphasizing its importance for understanding dimensions related to storage facilities.

Granulators and Reactors

• The speaker introduces granulators used for urea production, comparing them to reformers but clarifying they serve different functions.

• An overview of the reactor where ammonia reacts with CO2 to form urea is provided.

Storage Facilities

• Details about an ammonia storage tank are shared, highlighting its unique dome-shaped roof design.

• Safety measures are discussed regarding ammonia tanks being enclosed within dikes to prevent leaks.

Transportation Systems

• A conveyor belt system transporting granules from granulators to storage facilities is explained, noting its protection against environmental factors like rain.

Historical Context and Modernization Efforts

• The conversation shifts towards historical context, mentioning modernization efforts at Fertioriente in Morón around 2015 involving Japanese company TOYO.

• Conflicting reports about operational status post-modernization are noted; some claim it was functional while others suggest issues with compressors hindered operations.

Licensing and Costs Associated with Production

• Discussion includes licensing details for urea production by Snamprogetti and granulation by Hidroadri.

• The cost of constructing Fertioriente is mentioned as $1.1 billion, providing context for financial investments in such plants.

Ammonia Production Process Overview

• An explanation of how CO2 and ammonia are produced together highlights their interdependence in creating urea.

Technology Used for CO2 Removal

• Gianmarco Betrocoque's technology utilizing potassium carbonate solution for CO2 removal from synthesis gas is introduced.

This structured summary captures key discussions surrounding the processes involved in urea production while linking back to specific timestamps for further exploration.

Proceso de Regeneración del Carbonato de Potasio

Reacción con CO2

• La solución de carbonato de potasio reacciona con el CO2, generando una solución rica que se dirige a un regenerador.

• Este proceso es crucial para la regeneración del carbonato, permitiendo su reutilización en el sistema.

Condiciones de Absorción

• La absorción de gases ocurre a alta presión y baja temperatura; sin embargo, la liberación se da a baja presión y alta temperatura.

• En las columnas regeneradoras, se genera calor y se mantiene una baja presión, facilitando la reversibilidad de la reacción química.

Presión del CO2

• El CO2 producido sale a 4 PSIG, lo que es prácticamente equivalente a la presión atmosférica. Esto plantea preguntas sobre su uso posterior en otros procesos industriales.

Uso del CO2 en Producción de Urea

Cantidad Suficiente para Urea

• Se discute si el CO2 generado es suficiente para abastecer la producción de urea; cada tren de amoníaco parece abastecer su propio tren de urea.

• Sin embargo, hay un excedente significativo que no se utiliza completamente en este proceso.

Excedente y Destino del CO2

• El exceso de CO2 producido puede ser liberado al ambiente si no hay otro uso disponible para él. Esto plantea preocupaciones sobre el impacto ambiental y las regulaciones existentes.

• En Venezuela, actualmente no existen límites legislativos claros sobre las emisiones de CO2, lo que permite esta práctica sin penalizaciones significativas.

Historia y Comercialización del CO2

Planta Gas Carp

• Existía una planta llamada Gas Carp que compraba el CO2 producido por la planta de amoníaco para comercializarlo en cilindros y producir hielo seco hasta el año 2000.

• Esta empresa era parte integral del ciclo comercial del gas carbónico antes de cerrar debido a problemas económicos relacionados con la falta de gas natural necesario para operar eficientemente.

Oportunidades Comerciales Actuales

• A pesar del cierre anterior, existe potencial comercial actual para utilizar el excedente de CO2 en proyectos específicos; los interesados pueden acercarse a instalaciones donde se produce este gas como parte integral del negocio industrial local.