Comparisons of FCC product yields and qualities between reactors using Canadian heavy feeds

Ng, Samson; Humphries, Adrian; Fairbridge, Craig; Zhu, Yimei; Khulbe, C P; Tsai, T. Y. R.; Ding, Fang; Charland, Jean‐Pierre; Yui, Sok

doi:10.1016/j.fuproc.2005.01.020

Cited by 15 publications

(7 citation statements)

References 10 publications

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“…Letzsch and Ashton reported that, as a rule of thumb, LCO (diesel fraction) has approximately the same sulfur content as the feed for many FCC units. This was also observed in our previous work, regardless of the cracking units and catalysts used. Thus, LCOs from the 70 and 100% feeds contain ∼1.45 and ∼0.44 wt % S, respectively.…”

Section: Resultssupporting

confidence: 89%

“…In addition to high sulfur, LCO contains 60–80 wt % aromatics, , which are responsible for low cetane numbers. For some oil sands-derived feeds, aromatics in LCO can be as high as 90–95 wt %. ,, Over 70% of aromatics have two rings with the balance consisting of one ring and three rings (equally split) . The polyaromatic hydrocarbons (PAHs) with more than two rings combust poorly in diesel engines .…”

Section: Resultsmentioning

confidence: 99%

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Preliminary Assessment of a Strategy for Processing Oil Sands Bitumen to Reduce Carbon Footprint

Heshka

Zheng

et al. 2021

Energy Fuels

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Canada’s remaining established oil reserves are estimated at 167.7 billion barrels, of which 97% is found in oil sands. Refineries in Alberta, and many in the US, receive bitumen feedstocks via pipelines for processing into value-added products such as gasoline and diesel fuel. However, pipeline specifications require that bitumen either be upgraded to a lighter synthetic crude oil (SCO) or be diluted with a solvent to reduce viscosity and enhance density. SCO production is capital intensive and operationally costly and also results in significant greenhouse gas emissions. While adding a diluent to bitumen is not economic, this work addresses current challenges being faced by the oil sands industry and technology opportunities for improving the competitiveness of bitumen in the world market. To this end, the discussion focuses on oil sands distillate, which constitutes ∼44% of the bitumen. It has been found that this virgin distillate is a premium commodity in terms of diluent savings for pipelining and excellent processability for producing transportation fuels that may require some quality improvements.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Preliminary Assessment of a Strategy for Processing Oil Sands Bitumen to Reduce Carbon Footprint

Heshka

Zheng

et al. 2021

Energy Fuels

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“…Key objectives of the test program were to provide guidance for the pilot plant operation and to correlate results between the riser pilot plant and the MAT unit. Riser results were reported fully by Yui et al [4] and partially by Ng et al for brief comparisons of cracking yield and product quality [5][6][7] between the riser reactor and the MAT unit. One of the ten feeds studied was an oil sands untreated virgin HGO (343-525 • C) obtained from batch distillation of a whole bitumen, to simulate a commercial product from Syncrude's vacuum tower.…”

mentioning

confidence: 91%

Virgin Heavy Gas Oil from Oil Sands Bitumen as FCC Feed

Heshka

Zheng

et al. 2020

Catalysts

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This study deals with a systematic investigation of the fluid catalytic cracking (FCC) performance of a bitumen-derived virgin heavy gas oil (HGO) in the presence of its counterpart from bitumen-derived synthetic crude oil (SCO). The objective is to determine the amelioration effect on yield and product slate by the addition of the premium SCO HGO. The 343–525 °C cut virgin bitumen HGO was obtained from distillation of a raw Athabasca oil sands bitumen. It was then blended with different amounts of the 343 °C+ fraction of commercial SCO. Four HGO blends were prepared containing 75, 64, 61, and 48 v% of SCO HGO. Each HGO blend, as well as 100% SCO HGO, were catalytically cracked at 500 and 520 °C using a bench-scale Advanced Cracking Evaluation (ACE) unit. The results show acceptable FCC performance of bitumen virgin HGO when an adequate amount of SCO HGO is added. However, the resulting liquid product may need some quality improvement before use. Several observations, including catalyst poisoning by feed nitrogen and the refractory nature of virgin HGO, are evident and help to explain some observed cracking phenomena.

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“…The type of reactor also affects FCC product yields and qualities for the same catalyst and feed. This influence was investigated with both fixed‐bed and fluid bed MAT units, an advanced cracking evaluation (ACE) unit, and a pilot plant riser with the above‐mentioned 10 feeds . In general, at an equivalent catalyst‐to‐oil ratio, conversions decreased in the order ACE > fixed‐bed MAT > fluid bed MAT among the 3 batch reactors.…”

Section: Fluid Catalytic Crackingmentioning

confidence: 99%

Review on catalysis related research at CanmetENERGY

2015

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Canada's oil sands and heavy oil represent a major North American energy source. However, many technological, economic, and environmental challenges must be overcome in order to improve the effectiveness and efficiency required for converting these unconventional oils into clean and high‐quality transportation fuels that meet the ever‐increasing social licence associated with these energy resources. In oil sands bitumen and heavy oil upgrading, and petroleum refining, over 70 % of the processes involve catalysts and catalytic technologies. To advance new catalysts and catalytic technology development for bitumen upgrading and refining, fundamental and applied research has been conducted at CanmetENERGY on hydroprocessing (including catalyst development, reaction mechanism and kinetics, and process/reactor modelling and simulation), fluid catalytic cracking evaluation of bitumen‐derived feedstocks, and other related subjects. In addition, research collaborations have been established and maintained with a number of national and international universities, research organizations, and industrial companies to promote new upgrading and refining technology development. These research efforts have resulted in important impacts on academic R&D and industrial practice for catalytic conversion of Canadian oil sands bitumen and heavy oil. At the same time, reliable technical data and information have been generated to help government agencies in developing and implementing policies and regulations for oil sands development.

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Comparisons of FCC product yields and qualities between reactors using Canadian heavy feeds

Cited by 15 publications

References 10 publications

Preliminary Assessment of a Strategy for Processing Oil Sands Bitumen to Reduce Carbon Footprint

Preliminary Assessment of a Strategy for Processing Oil Sands Bitumen to Reduce Carbon Footprint

Virgin Heavy Gas Oil from Oil Sands Bitumen as FCC Feed

Review on catalysis related research at CanmetENERGY

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