13 resultados para cracking catalitico, biocombustibili, H-ZSM5, alghe, pirolisi

em University of Michigan


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Includes bibliographical references and index.

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Mode of access: Internet.

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Bologna.R.Univ.Opuscali scientifici 2: 286-292. pl.10-11. 1818.

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Federal Highway Administration, Washington, D.C.

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The consumable electrode arc melting of cold-compacted thorium powder has been developed to produce dense, clean and soft ingots which can be hot rolled without cracking. By using a water-cooled copper crucible, contamination has been prevented and resultant ingots cleaner than the original powder have been produced.

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Experimental evidence is presented which proves that voids formed during diffusion in brass are heterogeneously nucleated. The nuclei appear to be oxide particles, probably ZnO. When these are removed by re-melting, voids practically do not form upon subsequent dezincification. Brass which had been freed of void nucleation catalysts exhibited a considerably reduced tendency for grain boundary cracking during creep, and increased stress-rupture life.

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In 2004, both Illinois EPA and U.S. EPA investigated the location of a former battery cracking and recycling operation in Gilberts. The main site is located immediately north of the intersection of Railroad and Mill Streets bounded to Galligan Road on the east and the Chicago and Northwestern Railway on the west. It is in an area that is mostly wooded near both industrial and residential properties. Lead acid batteries were cracked open to recover the lead. Some of the lead seeped into the ground along with acid contained in the batteries. Extensive environmental sampling last summer identified a six-acre area of gross contamination (mainly lead). Later, a second area of contamination was discovered to the southwest, where the Village of Gilberts Public Works building is now located, west of the railroad tracks - this is known as the Tower Hill Road site.

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Publisher's advertisement p. [2] facing facsimile.