Cracking of Scrap Tires Pyrolysis Oil in a Fluidized Bed Reactor under Catalytic Cracking Unit Conditions. Effects of Operating Conditions

Rodríguez, Edgar Charry; Gutiérrez, Alazne; Palos, Roberto; Azkoiti, Miren J.; Arandes, José M.; Bilbao, Javier

doi:10.1021/acs.energyfuels.9b00292

Cited by 28 publications

(21 citation statements)

References 55 publications

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“…Rodrı́guez et al have studied the cracking of pure TPO obtained in a conical spouted bed reactor, , the cracking of TPO dissolved in VGO, and the nature and location of the coke formed in this process . Initially, these researchers studied the effect of operating conditions, that is, temperature, C/O ratio, and contact time.…”

Section: Catalytic Crackingmentioning

confidence: 99%

Section: Catalytic Crackingmentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Catalytic Crackingmentioning

confidence: 99%

Section: Catalytic Crackingmentioning

confidence: 99%

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

et al. 2021

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“…For large-scale stationary engines, a more reliable, but also more elaborate approach is currently used, in which oil samples are taken at regular intervals for off-line laboratory analysis to determine the optimal oil change interval [7,8]. The disadvantages of this method are high fixed costs and the delay between sample drawing and return of analysis results.…”

Section: Introductionmentioning

confidence: 99%

Research on Testing Method of Oil Characteristic Based on Quartz Tuning Fork Sensor

2021

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There is increasing demand for the on-board diagnosis of lubricating oils. In this research, we consider various sensor principles for on-board diagnosis of the thermal aging of engine oils. One of the parameters investigated is the viscosity of the lubricating oil, which can be efficiently measured using a microacoustic sensor. Compared with conventional viscometers, these sensors probe a different rheological domain, which needs to be considered in the interpretation of measurement results. This specific behavior is examined by systematically investigating engine oils, with and without additive packages, that were subjected to a defined artificial aging process. This paper presents design strategies for the algorithm developed and applied for direct on-board diagnosis of engine oil conditions with a fluid property sensor; this enables prediction of remaining oil life and optimization of oil change intervals, thereby minimizing the likelihood of dramatic engine failure and reducing maintenance costs. After a general description of the principles of sensor measurement, different engine oil contaminants, aging phenomena, and associated sensor detection and measurement capabilities are discussed.

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“…In the petroleum refining industry, fluid catalytic cracking (FCC) based on the fluidized bed technology is one of key processes in converting heavy oils into high-octane number gasoline and diesel. − In China, the FCC process plays a more important role in heavy oil processing because of the lack of hydro-conversion units. More than 70% gasoline pool is composed of FCC gasoline, of which the olefin content is usually up to 30–60%. − The olefins in gasoline may result in serious problems of engine deposits and air pollution for their highly active chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Fluid Catalytic Cracking Process with the Additional Regenerated Catalyst Circulation Path for Gasoline Reprocessing and Upgrading with Minimum Loss

Zhu

Cheng

et al. 2019

Energy Fuels

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Directly reprocessing fluid catalytic cracking (FCC) gasoline in the FCC unit is a simple method for gasoline upgrading. The gasoline distillate is typically reprocessed in the main riser reactor (i.e., the routine FCC process) or in a secondary riser (i.e., the dual-riser process), but abundant low-value byproducts are yielded during gasoline reformation. In this work, FCC gasoline upgrading was conducted over both the precoked FCC catalysts and the mixtures of regenerated and spent catalysts on a fixed-bed microreactor. Through systematic analysis of the product distribution, gasoline composition, and defined olefin reduction efficiency, a conceptual FCC process with an additional circulation path of the regenerated catalyst into the middle of riser reactor was proposed for gasoline reprocessing and upgrading. In contrast to the routine and dual-riser processes, the as-proposed FCC process was demonstrated to be more efficient in selectively converting the gasoline olefins into high-octane number aromatics and iso-paraffins with minimum loss in gasoline yield.

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Cracking of Scrap Tires Pyrolysis Oil in a Fluidized Bed Reactor under Catalytic Cracking Unit Conditions. Effects of Operating Conditions

Cited by 28 publications

References 55 publications

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

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

Research on Testing Method of Oil Characteristic Based on Quartz Tuning Fork Sensor

Conceptual Fluid Catalytic Cracking Process with the Additional Regenerated Catalyst Circulation Path for Gasoline Reprocessing and Upgrading with Minimum Loss

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