NExCC™ -Novel short contact time catalytic cracking technology

Hiltunen, J.; Niemi, V.; Lipiäinen, K.; Eilos, I.; Hagelberg, P.; Knuuttila, Pekka; Jääskeläinen, Kari; Majander, Joakim; Röppänen, J.

doi:10.1016/s0167-2991(01)82314-4

Cited by 7 publications

(5 citation statements)

References 1 publication

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“…The use of baffled separation devices for both reactor and regenerator circulating beds allowed to design a very compact unit as shown in Figure 13, reducing catalyst inventory and improving heat transfer efficiency. 176,177 Figure 13. A simplified schema of the NEXCC process reaction system.…”

Section: Nexcc Processmentioning

confidence: 99%

Crude oil to chemicals: light olefins from crude oil

Corma

Corresa

Mathieu

et al. 2017

Catal. Sci. Technol.

260

163

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Section: Nexcc Processmentioning

confidence: 99%

Crude oil to chemicals: light olefins from crude oil

Corma

Corresa

Mathieu

et al. 2017

Catal. Sci. Technol.

260

163

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“…To further enhance the production of light olefins, various special FCC processes, sharing common characteristics of high reaction severity and application of olefin-selective catalyst, have been developed and applied to commercial plants, such as KBR’s MAXOFIN, , UOP’s PetroFCC, ExxonMobil’s dual-riser process, Shell’s MILOS, ABB Lummus’s SCC, Neste Oy’s NExCC, Saudi Aramco’s HS-FCC, Sinopec’s deep catalytic cracking (DCC), , catalytic pyrolysis process (CPP), heavy-oil contact cracking (HCC), and FDFCC, as well as the two-stage riser catalytic cracking process for maximizing propylene yield (TMP) ,− developed by our research group. In general, these processes can be classified into two categories: one group treats fresh feedstock and recycled gasoline in a single riser, including PetroFCC, DCC, CPP, HCC, etc.…”

Section: Introductionmentioning

confidence: 99%

Residue Catalytic Cracking Process for Maximum Ethylene and Propylene Production

Zhu

Jiang

et al. 2013

Ind. Eng. Chem. Res.

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Effects of operating conditions on residue fluid catalytic cracking (RFCC) were studied in a pilot-scale FCC unit. Experimental results indicated that both high reaction severity and long residence time promoted the production of ethylene and propylene. A novel RFCC process for maximum ethylene and propylene (MEP) production was further proposed, which was characterized by high operating severity, application of olefin-selective catalyst, and stratified reprocessing of light gasoline and butenes. Simulation experiments of the MEP process demonstrated that both light cycle gasoline and recycled butenes were effectively converted; meanwhile, the semispent catalyst still retained sufficient activity to further crack residue feedstock. When treating Daqing AR, the MEP process yielded up to 8.85 wt % ethylene and 25.97 wt % propylene. In contrast, due to elevated catalyst activity in a second-stage riser, the two-stage riser MEP process produced more propylene and LPG at the expense of light oil. Also, ethylene yield was still up to a comparative level.

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“…The cycles of cracking and regeneration at high flow rates and temperatures, especially in the riser reactor and cyclones, tend to grind catalyst particles down into micron-sized dust called "fines" [18]. These fines have diameters below 20 µm compared to the average diameter of the catalyst particles, namely 60 to about 100 µm.…”

Section: Attrition Resistancementioning

confidence: 99%

FCC Catalyst Accessibility—A Review

2023

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Fluid catalytic cracking (FCC) is a critical process in the petroleum-refining industry, designed to break down large hydrocarbon molecules into smaller, more valuable products. Fluid-cracking catalyst accessibility dramatically influences the efficiency of the FCC process. Accessibility is a catalyst feature related to the ease with which large feedstock molecules can penetrate the catalyst particle to reach the internal active sites where reactions occur—and the ease with which products desorb and leave the catalyst. Accessibility plays a vital role in the activity, selectivity, and life of the catalyst, and various techniques can be applied during the manufacturing process to accomplish its increase. This work reviews FCC catalyst accessibility, its characterization, and the ways to increase it, covering the past three decades of technical paper and patent literature. Bibliometric results of a literature search are presented, and a search strategy is described, encompassing database identification, keyword selection, refinement terms, search criteria, and result evaluation.

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NExCC™ -Novel short contact time catalytic cracking technology

Cited by 7 publications

References 1 publication

Crude oil to chemicals: light olefins from crude oil

Crude oil to chemicals: light olefins from crude oil

Residue Catalytic Cracking Process for Maximum Ethylene and Propylene Production

FCC Catalyst Accessibility—A Review

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