Read e-book online Fluid Catalytic Cracking: Science and Technology PDF

By John S. Magee

ISBN-10: 0080887686

ISBN-13: 9780080887685

ISBN-10: 0444890378

ISBN-13: 9780444890375

The first concentration of this booklet as a complete is on functionality - functionality of the catalyst, of its floor, of the FCC unit, of the feedstocks hired, of the analytical tools used to symbolize the catalysts, and of environmentally directed rules that govern the construction of transportation fuels from petroleum. The emphasis is on catalyst functionality, fairly advertisement functionality, crucial dictated that the bankruptcy authors be skilled commercial catalytic chemists and engineers. although, every one writer approached the duty with a uncomplicated legal responsibility to attach the roots of the technology of FCC catalysis with the expertise. "Fluid Catalytic Cracking: technology and know-how" has been written for staff in business catalysis and academia, together with graduate scholars in chemistry or chemical engineering who're attracted to buying an total wisdom of 1 of the world's most crucial parts of catalysis. The ebook is concise, each one subject is taken care of in brief; whole, all features of catalysis are lined; concise, each one subject is taken care of briefly.; and transparent, someone keen on this box may still locate issues of curiosity.

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FCC evolution at each operator, or technology licensor, has taken its own path, with many common areas, but also many individual traits. Shell Oil Company contributed in several ways to FCC development. One of its early Model 111units was the first to use microspheroidal (MS) catalyst. Use of lowattrition MS catalyst permitted elimination of Cottrell precipitation. This also enabled the elimination of waste-heat boilers, which at the time had maintenance problems. One of Shell’s innovations was the Anacortes unit, completed in 1956, which featured a short-residence time FCC riser reactor followed by a second-stage conventional densebed cracker.

A .. ':.. +STEAM AIR- t--RESID I-RESID Figure 20. Shell FCCU Designs Other CRA members continued developing their own versions of FCC technology following World War 11. After licensing and building many of the early models, UOP introduced its "stacked" unit in 1947 with the 3,000 BPD Aurora unit in Detroit. Thirty stacked UOP units, typically in the 4,000 to 10,000 BPD range, were sold mostly to independent refiners in the early 1950's. UOP later built large side-by-side riser FCC units, and together with Mobil, developed the Ithigh-efficiency" riser regenerator.

In this context, a subsequent acid treatment will not create a large quantity of new secondary pores, but eliminates the amorphous material resulting from the previous treatment. Patzelova et al. [71] have measured the secondary pores formed in two USY zeolites and conclude that these pores are not caused by a chaotic collapse of part of the zeolite framework, but by local reordering during the hydrolysis of framework aluminum. They also find an accumulation of non-framework aluminum on the secondary pore walls.

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Fluid Catalytic Cracking: Science and Technology by John S. Magee


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