Innovative Ideas and News from Grace Refining Technologies
W. R. Grace & Co. experts demonstrate the value of doing business with Grace in Catalagram. From improved product performance to increased profitability, Grace's FCC catalysts and additives and ART's hydroprocessing catalysts and catalysts systems deliver significant value in today's challenging refining environment.
In This Issue
Shell Refinery Accelerates Bottoms Upgrading into Gasoline and Diesel Using a Novel FCC Catalyst Solution
Building on the continued success of RIVE Molecular Highway® Y-Zeolite (MHY®) technology at a Shell U.S. Gulf Coast (USGC) refinery in 2016, a customized catalyst solution incorporating MHY® zeolite was designed and trialed at a second North American Shell refinery. Read more about how Grace helped Shell achieve increased FCC bottoms upgrading into valuable gasoline and diesel products.
SHEPHERDING HYDROCRACKING PROFITABILITY: A NEW APPROACH
Both operability and maximization of catalyst cycles depend on mitigating the detrimental effects of recalcitrant aromatics, either through design considerations or improved catalyst systems. Particularly in a two-stage recycle configuration, the low temperature operation of a noble metal second stage catalyst can mitigate recalcitrant aromatics buildup, but the low second stage temperature required for managing recalcitrant fractions limits hydrocracking conversion. Inclusion of a deep hydrogenation catalyst from the ICR® 1000 catalyst family at the appropriate location offers a more robust and flexible means to address these challenges.
A CUSTOMER-DRIVEN INNOVATION STORY
To drive value for refineries, Grace continually develops new FCC solutions driven by customer needs – what we call Customer Driven Innovation. Grace works closely with refiners to determine their need and provide outstanding products supported by industry leading technical services. As part of the Customer Driven Innovation process, Grace visited Esmeraldas Refinery of PetroEcuador to meet with the Operations and Process Engineering departments in anticipation of a request for proposal (RFP) for a catalyst solution to meet their FCC unit objectives of increasing LPG and gasoline yields.
DISTILLATE POOL MAXIMIzATION BY EXPLOITING THE USE OF OPPORTUNITY FEEDSTOCKS SUCH AS LCO AND SYNTHETIC STOCKS
"Everything old is new again." When the article below was written in 2009, ULSD demand had pushed the previous year's distillate crack spreads to 10-year highs for much of the world, and refiners were looking for ways to maximize their diesel pool to take advantage of these market conditions. Flash forward 11 years, and in many markets distillate crack spreads are forecast to hit levels not seen since 2008 due to market dynamics caused by the start of the IMO 2020 bunker fuel specifications. Since the publication of the article, catalyst technology has continued to improve, making the processing of challenging feedstocks even more attractive. Combined with the return of improved distillate cracks, the article is as timely as ever.
PARKLAND REFINiNG AND GRACE COLLABORATE TO INCREASE FCCU CATALYST CIRCUATION CAPACITY
Parkland Refining operates a 55,000-bpd refinery located in Burnaby, British Columbia near the city of Vancouver. The FCCU processes a nominal 17,500 bpd of feedstock consisting of Vacuum Gas Oil and
Atmospheric Tower Bottoms. The FCCU was revamped several years ago to a side-by-side combustor design. The unit began to be limited by regenerated catalyst slide valve (RCSV) differential pressure (dP) in 2018 while using a competitor's catalyst. Parkland began using Grace catalyst in early 2019 and offered our technical expertise to the Parkland team to investigate the problem and restore the unit's catalyst circulation capacity. As this case study shows, Grace is not satisfied to only provide our customers with leading FCC catalyst technologies. Our experienced account teams together with Grace's Global Customer Technology group share our extensive operating and troubleshooting expertise with our customers to ensure they operate at an optimal level producing the highest financial returns possible.
INTRODUCING PROPYLENEMAX® CATALYTIC CRACKING (PMCC®)
The demand for transportation fuels is barely maintaining, while petrochemical demand is increasing. Refinery units can improve profitability by producing more petrochemicals versus traditional transportation fuels. PropyleneMAX® Catalytic Cracking (PMcc®) is a commercially proven fluid catalytic process for selectively cracking a variety of hydrocarbon feedstocks to light olefins, particularly propylene, isobutylene, aromatic naphtha and ethylene. Typical feedstocks include distillates, vacuum gas oils and residual oils. The PMcc® process offers a reliable, low-cost route to propylene production and allows the refiner to extend the market range into higher margin petrochemicals.
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