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  2. Petroleum refining processes - Wikipedia

    en.wikipedia.org/wiki/Petroleum_refining_processes

    The image below is a schematic flow diagram of a typical petroleum refinery that depicts the various refining processes and the flow of intermediate product streams that occurs between the inlet crude oil feedstock and the final end-products. The diagram depicts only one of the literally hundreds of different oil refinery configurations.

  3. Vacuum distillation - Wikipedia

    en.wikipedia.org/wiki/Vacuum_distillation

    Print/export Download as PDF; Printable version; ... Figure 2 is a simplified process diagram of a petroleum refinery vacuum distillation column that depicts the ...

  4. Refinery - Wikipedia

    en.wikipedia.org/wiki/Refinery

    Download as PDF; Printable version; ... The image below is a schematic flow diagram of a typical oil refinery depicting various ... This process inhibits color ...

  5. Zone melting - Wikipedia

    en.wikipedia.org/wiki/Zone_melting

    Zone melting (or zone refining, or floating-zone method, or floating-zone technique) is a group of similar methods of purifying crystals, in which a narrow region of a crystal is melted, and this molten zone is moved along the crystal. The molten region melts impure solid at its forward edge and leaves a wake of purer material solidified behind ...

  6. Oil refinery - Wikipedia

    en.wikipedia.org/wiki/Oil_refinery

    The image below is a schematic flow diagram of a typical oil refinery that depicts the various unit processes and the flow of intermediate product streams that occurs between the inlet crude oil feedstock and the final end products. The diagram depicts only one of the literally hundreds of different oil refinery configurations.

  7. Fluid catalytic cracking - Wikipedia

    en.wikipedia.org/wiki/Fluid_catalytic_cracking

    A typical fluid catalytic cracking unit in a petroleum refinery. Fluid catalytic cracking (FCC) is the conversion process used in petroleum refineries to convert the high-boiling point, high-molecular weight hydrocarbon fractions of petroleum (crude oils) into gasoline, alkene gases, and other petroleum products.

  8. Hydrodesulfurization - Wikipedia

    en.wikipedia.org/wiki/Hydrodesulfurization

    The image below is a schematic depiction of the equipment and the process flow streams in a typical refinery HDS unit. Schematic diagram of a typical hydrodesulfurization (HDS) unit in a petroleum refinery. The liquid feed (at the bottom left in the diagram) is pumped up to the required elevated pressure and is joined by a stream of hydrogen ...

  9. Visbreaker - Wikipedia

    en.wikipedia.org/wiki/Visbreaker

    A schematic diagram of a Visbreaker unit. The term coil (or furnace) visbreaking is applied to units where the cracking process occurs in the furnace tubes (or "coils")."). Material exiting the furnace is quenched to halt the cracking reactions: frequently this is achieved by heat exchange with the virgin material being fed to the furnace, which in turn is a good energy efficiency step, but ...