Petroleum Conversion Processes in Oil Refineries
Petroleum Conversion Processes in Oil Refineries
Transform low-value crude oil fractions into higher-value transportation fuels and petrochemical feedstocks.
Petroleum conversion processes are core refining operations used in oil refineries to transform low-value crude oil fractions into higher-value transportation fuels and petrochemical feedstocks. The primary objective of conversion processes is to change the molecular structure of hydrocarbons through thermal, catalytic, and hydrogen-based reactions in order to maximize the yield of gasoline, diesel, jet fuel, and LPG while meeting strict environmental and product quality specifications.
Process
Objective
The primary objective of conversion processes is to change the molecular structure of hydrocarbons through thermal, catalytic, and hydrogen-based reactions.
Product
Yield
Maximize the yield of gasoline, diesel, jet fuel, and LPG while meeting strict environmental and product quality specifications.
Refinery
Value
Transform low-value crude oil fractions into higher-value transportation fuels and petrochemical feedstocks.
Major Petroleum Conversion Processes
Major Petroleum Conversion Processes
Conversion Process Portfolio
Fluid Catalytic Cracking (FCC)
FCC converts heavy gas oils into lighter products such as gasoline, LPG, and light olefins through catalytic cracking reactions.
Hydrocracking
Hydrocracking is a hydrogen-intensive conversion process used to upgrade heavy feedstocks into high-quality middle distillates such as diesel and jet fuel.
Catalytic Reforming
Catalytic reforming upgrades low-octane naphtha into high-octane reformate and hydrogen by rearranging hydrocarbon molecules.
Cracking (FCC)
Fluid Catalytic Cracking is one of the most widely used conversion processes in oil refineries. FCC converts heavy gas oils into lighter products such as gasoline, LPG, and light olefins through catalytic cracking reactions.
Key features:
FCC units are central to maximizing gasoline production and improving refinery economics.
Heavy Feedstock Upgrading
Hydrocracking is a hydrogen-intensive conversion process used to upgrade heavy feedstocks into high-quality middle distillates such as diesel and jet fuel.
Key benefits:
Hydrocracking is essential for refineries processing heavy or high-sulfur crudes.
Mild Thermal Cracking
Visbreaking is a mild thermal cracking process designed to reduce the viscosity of heavy residues and improve fuel oil blending properties.
Key objectives:
Visbreaking is commonly applied where deep conversion severity is not required.
Reforming
Catalytic reforming upgrades low-octane naphtha into high-octane reformate and hydrogen by rearranging hydrocarbon molecules.
Key outputs:
Reforming units are critical hydrogen sources within modern refineries.
Conversion Catalyst Systems
FCC Catalysts – zeolite-based cracking catalysts
Hydrocracking Catalysts – Ni-Mo, Ni-W on alumina or silica-alumina
Reforming Catalysts – platinum-based bifunctional catalysts
Catalysts are fundamental to petroleum conversion processes, directly impacting conversion efficiency, selectivity, and unit cycle length.
OGSCM Group supports refineries by sourcing and supplying refinery-approved conversion catalysts with full technical documentation and handling support.
Chemicals
Petroleum conversion units require various process chemicals to maintain stable operation, protect equipment, and support catalyst performance.
Hydrogen (H₂), Sulfiding agents (DMDS, TBPS), Antifoaming agents, Corrosion inhibitors, Catalyst additives.
Bulk supply (pipeline, tanker, ISO tank), IBC containers (1,000 L) and Steel drums (200–220 L).
Petroleum conversion units require various process chemicals to maintain stable operation, protect equipment, and support catalyst performance.
Standard Industrial Packaging for these chemicals including Bulk supply (pipeline, tanker, ISO tank), IBC containers (1,000 L) and Steel drums (200–220 L). OGSCM Group supplies high-quality conversion process chemicals in approved industrial packaging formats, ensuring safe logistics and uninterrupted refinery operation.
Chemical Brands
Widely recognized chemical manufacturers supporting petroleum conversion processes include:
OGSCM works with approved suppliers to ensure consistent quality and compliance with licensor requirements.
Conversion Equipment Systems
Conversion Reactors and Vessels
Heat Exchangers and Furnaces
Instrumentation & Valves
Conversion reactors are designed to operate under severe temperature and pressure conditions and house fixed-bed or fluidized catalyst systems.
Heat exchangers and fired heaters are essential for feed preheating, effluent cooling, and energy integration.
Precise instrumentation ensures safe and optimized operation of high-severity conversion processes.
Conversion reactors are designed to operate under severe temperature and pressure conditions and house fixed-bed or fluidized catalyst systems.
OGSCM provides sourcing and supply services for conversion reactors, internals, catalyst handling systems, and associated mechanical components.
and Furnaces
Heat exchangers and fired heaters are essential for feed preheating, effluent cooling, and energy integration.
High-Severity Process Control
Precise instrumentation ensures safe and optimized operation of high-severity conversion processes.
| Tag | Full Name | Function |
|---|---|---|
| PT | Pressure Transmitter | Pressure monitoring |
| TT | Temperature Transmitter | Reactor temperature control |
| FT | Flow Transmitter | Feed and hydrogen flow measurement |
| AT | Analyzer Transmitter | Product quality monitoring |
High-Temperature and High-Pressure Services
Valves are critical for process control, isolation, and safety in high-temperature and high-pressure services.