Hydrotreating of light cycle oil

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydrotreating of light cycle oil

Popis výsledku v původním jazyce

Light cycle oil (LCO) was subjected to hydrotreating on a commercial CoMo/Al2O3 + SiO2 catalyst in a laboratory flow reactor at a pressure of 4 MPa, temperature 380 °C and 390 °C. The various feedstock space velocities of 0.6, 0.8 and 1.0 h-1 (WHSV) changed the ratio of hydrogen to feedstock from 440 m3/m3 to 260 m3/m3. High polyaromatic content of light cycle oil (LCO) was the cause of its high density and low cetane index. These properties were due to hydrogenation of diaromatics and triaromatics to monoaromatics improved slightly, but no product met the requirements of EN 590 for diesel fuel. Although the LCO contained large amounts of nitrogen and polycyclic aromatic hydrocarbons, a significant hydrodesulphurization and hydrodenitrogenation occurred in all the products. Decreasing feed rate and an increasing ratio of hydrogen to the feedstock improve properties of hydrotreating products. Hydrodesulphurization was higher at the temperature of 390 °C than at the 380 °C. Polyaromatics content in the product was conversely lower at 380 °C which is probably associated with the balance of the exothermic hydrogenation of diaromatics and triaromatics to monoaromatics. Desulphurization of LCO is not a major problem for modern hydrotreating catalysts, in spite of this hydrotreated LCO cannot be used in a larger amount as a component of diesel fuel for its high density, high polyaromatic content and low cetane index.

Název v anglickém jazyce

Hydrotreating of light cycle oil

Popis výsledku anglicky

Light cycle oil (LCO) was subjected to hydrotreating on a commercial CoMo/Al2O3 + SiO2 catalyst in a laboratory flow reactor at a pressure of 4 MPa, temperature 380 °C and 390 °C. The various feedstock space velocities of 0.6, 0.8 and 1.0 h-1 (WHSV) changed the ratio of hydrogen to feedstock from 440 m3/m3 to 260 m3/m3. High polyaromatic content of light cycle oil (LCO) was the cause of its high density and low cetane index. These properties were due to hydrogenation of diaromatics and triaromatics to monoaromatics improved slightly, but no product met the requirements of EN 590 for diesel fuel. Although the LCO contained large amounts of nitrogen and polycyclic aromatic hydrocarbons, a significant hydrodesulphurization and hydrodenitrogenation occurred in all the products. Decreasing feed rate and an increasing ratio of hydrogen to the feedstock improve properties of hydrotreating products. Hydrodesulphurization was higher at the temperature of 390 °C than at the 380 °C. Polyaromatics content in the product was conversely lower at 380 °C which is probably associated with the balance of the exothermic hydrogenation of diaromatics and triaromatics to monoaromatics. Desulphurization of LCO is not a major problem for modern hydrotreating catalysts, in spite of this hydrotreated LCO cannot be used in a larger amount as a component of diesel fuel for its high density, high polyaromatic content and low cetane index.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 3rd International Conference on Chemical Technology

ISBN

978-80-86238-79-1

ISSN

2336-811X

e-ISSN

neuvedeno

Počet stran výsledku

3

Strana od-do

147-149

Název nakladatele

Česká společnost průmyslové chemie (ČSPCH)

Místo vydání

Praha

Místo konání akce

Mikulov

Datum konání akce

13. 4. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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