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Mild-temperature catalytic cracking

Butadiene is obtained mainly as a coproduct with other light olefins from steam cracking units for ethylene production. Other sources of butadiene are the catalytic dehydrogenation of butanes and butenes, and dehydration of 1,4-butanediol. Butadiene is a colorless gas with a mild aromatic odor. Its specific gravity is 0.6211 at 20°C and its boiling temperature is -4.4°C. The U.S. production of butadiene reached 4.1 billion pounds in 1997 and it was the 36th highest-volume chemical. ... [Pg.37]

In a plant producing 200 kt/a of ethylene from cracked naphtha, acetylene in the product was hydrogenated to ethylene in a catalytic unit operated under conditions mild enough not to hydrogenate ethylene. During a temporary shut-down and probably owing to operating error, the internal temperature in the catalytic unit rose to... [Pg.1678]

See other pages where Mild-temperature catalytic cracking is mentioned: [Pg.77]    [Pg.73]    [Pg.77]    [Pg.73]    [Pg.526]    [Pg.337]    [Pg.302]    [Pg.131]    [Pg.363]    [Pg.1576]    [Pg.313]    [Pg.39]    [Pg.96]    [Pg.28]    [Pg.240]    [Pg.166]    [Pg.307]    [Pg.1611]    [Pg.222]    [Pg.174]    [Pg.128]    [Pg.1611]    [Pg.55]    [Pg.120]    [Pg.1611]    [Pg.7]    [Pg.1030]    [Pg.897]    [Pg.521]    [Pg.322]    [Pg.1030]    [Pg.222]    [Pg.412]   
See also in sourсe #XX -- [ Pg.73 ]

See also in sourсe #XX -- [ Pg.73 ]



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