Lessening coke formation and boosting gasoline yield by incorporating scrap tire pyrolysis oil in the cracking conditions of an FCC unit

Rodríguez, Edgar Charry; Izaddoust, Sepideh; Valecillos, José; Bilbao, Javier; Arandes, José M.; Castaño, Pedro; Epelde, Eva; Elordi, Gorka

doi:10.1016/j.enconman.2020.113327

Cited by 15 publications

(15 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The produced aromatics can be the primary nuclei for intensifying the Diels-Alder reactions at high temperatures, increasing the number of aromatic rings in the pyrolysis product (di and poly aromatics), and ultimately leading to coke formation (Chao et al, 2020;Zhou et al, 2019). However, monitoring coke formation is complicated due to the high amount of CB and other mineral additives present in used tires (Rodríguez et al, 2020;Roy et al, 1999). Even CB can be involved as the initial nucleus of Diels-Alder reactions that leads to the formation of a new structure on the CB surface.…”

Section: Temperaturementioning

confidence: 99%

Towards full recyclability of end-of-life tires: Challenges and opportunities

Abbas-Abadi

Kusenberg

Shirazi

et al. 2022

Journal of Cleaner Production

View full text Add to dashboard Cite

Section: Temperaturementioning

confidence: 99%

Towards full recyclability of end-of-life tires: Challenges and opportunities

Abbas-Abadi

Kusenberg

Shirazi

et al. 2022

Journal of Cleaner Production

View full text Add to dashboard Cite

“…Rodrı ́guez et al have studied the cracking of pure TPO obtained in a conical spouted bed reactor, 207,208 the cracking of TPO dissolved in VGO, 209 and the nature and location of the coke formed in this process. 210 Initially, 208 these researchers studied the effect of operating conditions, that is, temperature, C/O ratio, and contact time. Accordingly, they used a riser simulator reactor and an equilibrated FCC catalyst in order to perform the testing at industrial conditions.…”

Section: Plastic Pyrolysis Oil (Waxes)mentioning

confidence: 99%

“…The formation of coke is of crucial relevance in the reaction extent and regeneration of the catalyst. By means of several analyses, the nature and location of the coke deposited in the cracking of the TPO has been determined, 210 demonstrating that the coke derived from TPO was lighter and more aliphatic than that of the VGO and located on the outside of the micropores. Conversely, the coke is commonly located within the micropores of the catalyst in the cracking of VGO.…”

Section: Plastic Pyrolysis Oil (Waxes)mentioning

confidence: 99%

See 1 more Smart Citation

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

This review collects a wide range of initiatives and results that expose the potential of the refineries to be converted into waste refineries. Thus, they will use their current units for the valorization of consumer society wastes (waste plastics and end-of-life tires in particular) that are manufactured with petroleum derivatives. The capacity, technological development, and versatility of fluid catalytic cracking (FCC) and hydroprocessing units make them appropriate for achieving this goal. Polyolefinic plastics (polyethylene and polypropylene), the waxes obtained in their fast pyrolysis, and the tire pyrolysis oils can be cofed together with the current streams of the industrial units. Conventional refineries have the opportunity of operating as waste refineries cofeeding these alternative feeds and tailoring the properties of the fuels and raw materials produced to be adapted to commercial requirements within the oil economy frame. This strategy will contribute in a centralized and rational way to the recycling of the consumer society wastes on a large scale. Furthermore, the use of already existing and, especially, depreciated units for the production of fuels and raw materials (such as light olefins and aromatics) promotes the economy of the recycling process.

show abstract

“…Fluid catalytic cracking (FCC) is an important process for crude oil, in which FCC catalysts have played a key role [ 1 , 2 , 3 ]. Recently, with crude oil becoming increasingly inferior, the demand for an excellent catalytic cracking performance of FCC catalysts has greatly increased [ 4 , 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Si-Modified Pseudo-Boehmite@kaolin Composite and Its Application as a Novel Matrix Material for FCC Catalyst

Yuan

Zhou

et al. 2022

Materials

View full text Add to dashboard Cite

Fluid catalytic cracking (FCC) has been the primary processing technology for heavy oil. Due to the inferior properties of heavy oil, an excellent performance is demanded of FCC catalysts. In this work, based on the acid extracting method, Si-modified pseudo-boehmite units (Si-PB) are constructed in situ and introduced into the structure of kaolin to synthesize a Si-PB@kaolin composite. The synthesized Si-PB@kaolin is further characterized and used as a matrix material for the FCC catalyst. The results indicate that, compared with a conventional kaolin matrix, a Si-PB@kaolin composite could significantly improve the heavy oil catalytic cracking performance of the prepared FCC catalyst because of its excellent properties, such as a larger surface area, a higher pore volume, and a good surface acidity. For the fresh FCC catalysts, compared with the FCC catalysts using conventional kaolin (Cat-1), the gasoline yield and total liquid yield of the catalyst containing Si-PB@kaolin (Cat-2) could obviously increase by 2.06% and 1.55%, respectively, with the bottom yield decreasing by 2.64%. After vanadium and nickel contamination, compared with Cat-1, the gasoline yield and total liquid yield of Cat-2 could increase by 1.97% and 1.24%, respectively, with the bottom yield decreasing by 1.80 percentage points.

show abstract

Lessening coke formation and boosting gasoline yield by incorporating scrap tire pyrolysis oil in the cracking conditions of an FCC unit

Cited by 15 publications

References 80 publications

Towards full recyclability of end-of-life tires: Challenges and opportunities

Towards full recyclability of end-of-life tires: Challenges and opportunities

Waste Refinery: The Valorization of Waste Plastics and End-of-Life Tires in Refinery Units. A Review

Synthesis of Si-Modified Pseudo-Boehmite@kaolin Composite and Its Application as a Novel Matrix Material for FCC Catalyst

Contact Info

Product

Resources

About