rafineriler

Rafineriler (oil refineries) are industrial complexes that convert crude oil into usable products, including fuels and chemical feedstocks. They are large, capital-intensive facilities that operate continuously and require substantial energy, water, and safety systems. Refineries are typically located near ports or pipelines to facilitate crude supply and product distribution.

The core process is atmospheric distillation, which separates crude into fractions by boiling point. Heavier fractions are upgraded by units such as vacuum distillation, hydrodesulfurization, hydrocracking, catalytic cracking, reforming, alkylation, and isomerization, as well as coking to handle residue. Most modern refineries combine several units to optimize yield and flexibility.

Typical products include gasoline, diesel, jet fuel, kerosene, LPG, naphtha, and heavy fuel oils, along with lubricants and petrochemical feedstocks such as ethylene and propylene produced in dedicated streams. Some installations also produce asphalt and specialty chemicals.

Economically, refineries require large capital outlays and operate continuously to meet demand. Environmental considerations focus on sulfur removal, emissions control, wastewater treatment, and energy efficiency. Regulations push cleaner fuels and lower sulfur content, prompting modernization and integration with petrochemicals to improve efficiency and reduce waste.

Globally, refinery capacity ranges from small regional plants to mega-refineries capable of several hundred thousand barrels per day. Locations reflect access to crude supply, markets, and transportation networks, with ongoing consolidation and modernization driven by crude mix, demand shifts, and environmental standards.