Fluid catalytic cracker catalyst design for nitrogen tolerance

Young, George W.

doi:10.1021/j100411a035

Cited by 17 publications

(12 citation statements)

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“…Fu and Schaffer's data showed that the extent of poisoning decreases with increasing temperature. Others have made similar observations (Voltz et al, 1972;Young, 1986).…”

Section: Results Of Pls Analysissupporting

confidence: 57%

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Effect of nitrogen compounds on cracking catalysts

Ho¹,

Katritzky²,

Cato³

1992

Ind. Eng. Chem. Res.

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“…Fu and Schaffer's data showed that the extent of poisoning decreases with increasing temperature. Others have made similar observations (Voltz et al, 1972;Young, 1986).…”

Section: Results Of Pls Analysissupporting

confidence: 57%

“…Most early studies (in the 1950s) were conducted on amorphous silica-alumina catalysts. Recently, a few studies were performed on zeolite-containing catalysts using model compounds (Young, 1986; Corma et al, 1987). The most comprehensive study perhaps is that of Fu and Schaffer (1985).…”

Section: Introductionmentioning

confidence: 99%

Effect of nitrogen compounds on cracking catalysts

Ho¹,

Katritzky²,

Cato³

1992

Ind. Eng. Chem. Res.

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“…What's more, nitrogen is usually combined with polynuclear aromatics, which form coke more easily compared to simpler ones. Although the negative effects of nitrogen compounds and polynuclear aromatics on catalysts during the fluid catalytic cracking (FCC) process have been known for several decades, − the coking mechanism study, which is helpful to deal with feedstocks containing these compounds, has not been carried out in-depth, which results in few effective upgrading processes developed. The FCC and hydrocracking, which are two key processes for CGO upgrading, face new challenges as a consequence of the increasing heavy-oriented petroleum reserves and severity in the environmental requirements for fuel composition. , To pursue the best interest for refineries, CGO is usually blended with other feedstock during upgrading.…”

Section: Introductionmentioning

confidence: 99%

Effect of Retarding Components on Heavy Oil Catalytic Cracking and Their Corresponding Countermeasures

Wang

Gao

2019

Energy Fuels

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Heavy oil could be classified into two parts: one is the easy cracking part, which is the main source of liquid hydrocarbon transportation fuels and industrial chemicals, and the other is the refractory cracking part, which is failed to be cracked by the present technologies and has negative effects on upgrading. Therefore, the efficient method to obtain a higher conversion of heavy oil is needed for the heavy oil processing industry. Coker gas oil (CGO), used as an example of heavy oil, is supposed to be hard to process during fluid catalytic cracking (FCC). The structural information in the molecular level of basic nitrogen compounds, nonbasic nitrogen compounds, and condensed aromatics in feedstock and liquid products from FCC was investigated. The coked catalysts in the catalytic cracking reaction of CGO were characterized. The results showed that these compounds, especially basic ones, are more difficult to crack, which are preferentially chemisorbed on the surface of the catalyst leading to less acid sites for other easy cracking hydrocarbons and the decrease of the activity of catalysts. Physical solvent removal and chemical catalytic adsorption were used to pretreat heavy oil, and the result indicated that either physical solvent removal or chemical catalytic adsorption is a good way to avoid the retarding effects of refractory cracking components, and better product distributions can be obtained.

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“…Thus, catalytically treated wheat straw oil obtained with HZSM-5 based catalysts may require further hydrotreating prior to FCC in order to saturate condensed aromatics, remove phenols and reduce the content of basic nitrogen [51,66]. While it is desirable to develop a nitrogen-resistant FCC catalyst [50,[67][68][69], the nitrogen poisoning is reversible, as the nitrogen components are burned in the FCC regenerator (see Peng et al [45], and references therein).…”

Section: Discussionmentioning

confidence: 99%

Co-processing of wood and wheat straw derived pyrolysis oils with FCC feed—Product distribution and effect of deoxygenation

Eschenbacher

Myrstad

Bech³

et al. 2020

Fuel

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Fluid catalytic cracker catalyst design for nitrogen tolerance

Cited by 17 publications

References 0 publications

Effect of nitrogen compounds on cracking catalysts

Effect of nitrogen compounds on cracking catalysts

Effect of Retarding Components on Heavy Oil Catalytic Cracking and Their Corresponding Countermeasures

Co-processing of wood and wheat straw derived pyrolysis oils with FCC feed—Product distribution and effect of deoxygenation

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