Mild Hydrocracking of Vacuum Gas Oils to Improve FCC Performance and Maximize Distillate Yields

Bhaskar, M.; Valavarasu, G.; Balaraman, Kaluvu

doi:10.1081/lft-120003720

Cited by 4 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it is important to study the influence of the models input on the response. This is called sensitivity analysis [2]. Two categories of inputs can be considered.…”

Section: Introductionmentioning

confidence: 99%

“…Mild Hydrocrackers [2][3][4] use one or several combinations of non noble metal group VI elements based on supports with no or very low acidity and do not seem to require strong acidic supports such as zeolite based supports. The set of catalysts is determined according to two different criteria: (1) a compromise between activity and selectivity allowing to attain the desired yields.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dealing with uncertainties: Sensitivity analysis of vacuum gas oil hydrotreatment

Celse

Costa

Wahl

et al. 2015

Chemical Engineering Journal

View full text Add to dashboard Cite

“…Therefore, it is important to study the influence of the models input on the response. This is called sensitivity analysis [2]. Two categories of inputs can be considered.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dealing with uncertainties: Sensitivity analysis of vacuum gas oil hydrotreatment

Celse

Costa

Wahl

et al. 2015

Chemical Engineering Journal

View full text Add to dashboard Cite

“…The mild HCK process studied in this work is a two-step process, which is often used in industrial units. 13 The HDT reactor uses a more robust catalyst, which essentially serves to remove heteroatoms from the vacuum gas oil (VGO) feed in order to satisfy product quality constraints and avoid poisoning the more delicate zeolite-based HCK catalysts. 14 Second, the HCK reactor uses a commercial zeolite catalyst with a carefully selected balance of acid and metallic sites.…”

Section: Introductionmentioning

confidence: 99%

Global Methodology for Catalyst Screening and Optimization Process. Application to Mild Hydrocracking

Davy

Castro

Wessels

et al. 2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Hydrocracking is a crucial refinery process that transforms heavy molecules (i.e., vacuum gas oil) into lighter and highly valued products such as naphtha, jet fuel and diesel fuel. In order to improve margins, the refiner must tackle the following points: (1) select the best catalyst stacking or combination [hydrotreatment catalyst(s) + hydrocracking catalyst(s)] and (2) optimization process: define the optimal operating conditions. The aim of this paper is to illustrate the global methodology proposed by IFPEN to answer to these points with the focus on experimental points. It is illustrated for the revamping of a fluid catalytic cracking feedstock hydrotreater (CFHDT) into a mild hydrocracker. It is divided into several steps. The first step is a virtual screening for possible catalyst stacking and operating conditions. It is based on hydrodenitrogenation (HDN), hydrodesulfurization (HDS) and hydrocracking (HDC or HCK) kinetic modeling, and product property correlations. The second step is to define the design of experiments in order to check the results provided by the kinetic models. The third step is to check the virtual stacking using pilot plant tests. This can be carried out by using a high throughput testing (HTT) experiment pilot plant (reactor volume around 0.5−1 cm 3 ). The fourth step is to test the prescreened catalyst stacking in a classical pilot plant (reactor volume around 50−200 cm 3 ) because they are more robust to refractory feedstock, and it can produce additional product volume for further analysis. The fifth step is to update the kinetic models using the new experimental points. This paper shows also that: (1) it is possible to process refractory feedstock in the HTT experiment pilot plant; (2) catalyst ranking is similar in HTT and classical pilot plants; and (3) in mild hydrocracking, performances (HDS, HDN, and HDC) are similar between HTT and classical pilot plants. However, the classical pilot plants are still useful for process study (optimize each temperature bed, estimate product properties for specific cuts, etc).

show abstract

Effect of the support on the kinetic and deactivation performance of Pt/support catalysts during coupled hydrogenation and ring-opening of pyrolysis gasoline

Castaño

Gutiérrez

Pawelec

et al. 2007

Applied Catalysis A: General

View full text Add to dashboard Cite

Mild Hydrocracking of Vacuum Gas Oils to Improve FCC Performance and Maximize Distillate Yields

Cited by 4 publications

References 1 publication

Dealing with uncertainties: Sensitivity analysis of vacuum gas oil hydrotreatment

Dealing with uncertainties: Sensitivity analysis of vacuum gas oil hydrotreatment

Global Methodology for Catalyst Screening and Optimization Process. Application to Mild Hydrocracking

Effect of the support on the kinetic and deactivation performance of Pt/support catalysts during coupled hydrogenation and ring-opening of pyrolysis gasoline

Contact Info

Product

Resources

About