ﭘﺲ ﺍﺯ ﺟﺪﺍ ﺳﺎﺯﯼ ﻣﻮﺍﺩ ﺭﻭﻏﻨﯽ ﻭ ﯾﺎ ﺳﻮﺧﺘﯽ ﺩﺭﺷﺮﺍﯾﻂ ﺧﻼﺀ، ﺗﻪ ﻣﺎﻧﺪﻩ ﺑﺮﺝ ﺧﻼﺀ ﺍﺑﺘﺪﺍ ﻭﺍﺭﺩ ﻭﺍﺣﺪ ﺭﻭﻏﻦ ﺳﺎﺯﯼ ﺳﭙﺲ ﻭﺍﺭﺩ ﻭﺍﺣﺪ Visbraker ﺑﺮﺍﯼ ﺗﻮﻟﯿﺪ ﻧﻔﺖ ﮐﻮﺭﻩ ﯾﺎ ﻣﺎﺯﻭﺕ ﻭ ﺩﺭ ﺍﻧﺘﻬﺎ ﻭﺍﺭﺩ ﻭﺍﺣﺪ ﺁﺳﻔﺎﻟﺖ ﯾﺎ ﻗﯿﺮ ﺳﺎﺯﯼ ﻣﯽ ﮔﺮﺩﺩ. ﺩﺭ ﻭﺍﺣﺪ ﻗﯿﺮﺳﺎﺯﯼ ﻋﻤﻠﯿﺎﺕ ﻫﻮﺍﺩﻫﯽ ﻭ ﺍﯾﺠﺎﺩ ﺍﮐﺴﯿﺪﺍﺳﯿﻮﻥ ﺩﺭ ﺩﺍﺧﻞ ﺭﺍﮐﺘﻮﺭ ﺑﻪ ﺭﻭﺵ ﻫﺎﯼ Conventional ﻭ Bituroxﺑﺮ ﺍﺳﺎﺱ ﺗﻐﯿﯿﺮﺍﺕ ﺩﻣﺎﯾﯽ ﻭ ﻣﯿﺰﺍﻥ ﻫﻮﺍﺩﻫﯽ ، ﺧﻮﺭﺍﮎ ﺗﺒﺪﯾﻞ ﺑﻪ ﺍﻧﻮﺍﻉ ﮔﺮﯾﺪﻫﺎﯼ ﻗﯿﺮ ﻣﯽ ﮔﺮﺩﺩ .