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FCC Gasoline: Gas Oil Cracked over Fluidised Silica-Alumina at 975 °F, 71.5 % Conversion (Gulf, US 3,071,535)
Charlie

Oluşturan

Charlie

29. Ekim 2026DE
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FCC Gasoline: Gas Oil Cracked over Fluidised Silica-Alumina at 975 °F, 71.5 % Conversion (Gulf, US 3,071,535)

In a fluid catalytic cracker, gas oil vapour streams up through a bed of fine silica-alumina powder kept floating by the gas, and breaks into gasoline and lighter products. Gulf ran theirs hotter than usual, at 975 °F, to make more butylenes for alkylation. Result (Gulf's example, barrels per day): from 44,840 of gas oil, 15,052 of gasoline boiling to 400 °F plus 4,393 of pentane fraction, with 7,547 of C4-C5, 4,230 of C3, 10,555 of light gas oil and fuel gas. Conversion 71.5 %. Source: Condrasky & Glazier, US 3,071,535 (Gulf, filed 1959). The heavy gas oil and coker gas oil come from Gulf's own crude unit and coker. Not given: catalyst regeneration, space velocity, how the gasoline is sweetened. Hot oil vapour: fire risk. Picture drawn by Youblob.
Uzman
1 day

Talimatlar

1

Charge the gas oils

The fresh charge is heavy straight-run gas oil boiling from 620 to 1,050 °F, 36,950 barrels per day in Gulf's example, plus 7,890 of coker gas oil boiling above 400 °F.

Bu adım için malzemeler:

Ağır gaz yağıAğır gaz yağı36950 parts by volume
Koker gaz yağıKoker gaz yağı7890 parts by volume

Gerekli aletler:

Petrol depolama tankıPetrol depolama tankı
Aktarma pompasıAktarma pompası
2

Crack over a suspended bed of silica-alumina powder

Vaporise the charge and pass it upward through a suspended bed of powdered silica-alumina catalyst, as in a conventional fluid catalytic cracker.

Gerekli aletler:

Akışkan Yataklı ReaktörAkışkan Yataklı Reaktör
Silika-alümina jel katalizörSilika-alümina jel katalizör
3

Run at 975 °F or hotter, to 70 % conversion or more

Hold the cracking temperature at 975 °F or more, preferably 975 to 1,050 °F, and set the space velocity to convert at least 70 % by volume of the fresh charge. Gulf's example: 975 °F, 71.5 %.

Gerekli aletler:

Akışkan Yataklı ReaktörAkışkan Yataklı Reaktör
PirometrePirometre
4

Fractionate the products

Split the cracked products: fuel gas, a C3 fraction (4,230), a C4-C5 fraction (7,547), a C5 fraction (4,393), gasoline boiling from C6 to 400 °F (15,052), light gas oil (10,555) and heavy oils. The C3 fraction and the light gas oil are kept for polymerisation and hydrotreating. Gulf does not describe the fractionator. Ours: a fractionating still.

Gerekli aletler:

Fraksiyonlu imbikFraksiyonlu imbik
5

Sweeten the C5 fraction and the gasoline

The C5 fraction and the gasoline are preferably sweetened in a conventional unit that turns mercaptans into less objectionable sulphur compounds. Gulf does not give the method. This is the FCC gasoline; its part boiling up to 200 °F is the light FCC of the premium blend.

Gerekli aletler:

Petrol depolama tankıPetrol depolama tankı

Malzemeler

2

Gerekli Aletler

6

CC0 Kamu Malı

Bu plan CC0 lisansıyla yayınlanmıştır. İzin almadan kopyalayabilir, değiştirebilir, dağıtabilir ve herhangi bir amaçla kullanabilirsiniz.

Planı üzerinden ürün satın alarak Maker'ı destekleyin, böylece Maker Komisyonu Satıcılar tarafından belirlenen komisyonu kazanırlar veya bu Planın yeni bir versiyonunu oluşturun ve gelir paylaşımı için kendi Planınıza bağlantı olarak ekleyin.

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