PPE 1 (QUART 1) Flashcards
(10 cards)
are chemicals derived from petroleum
Petrochemicals
is a mixture of hydrocarbons boiling in the range of
the lowest boiling component (C5) to 150°C, which contains
paraffins, naphthenes, and aromatics in various proportions
Naphtha
Examples of petrochemicals are
plastics, rubbers,
fibers, paints, solvents, and detergents.
Naphtha
is found that _____ yield ____ when heated at a high
temperature.
paraffins
olefins
LARGEST PETROCHEMICAL PLANT IN TH COUNTRY
JGSOC
NATURE OF NAPHTHA CRACKING
Naphtha cracking is carried out in a tube-still furnace at a
temperature above
800°C.
NATURE OF NAPHTHA CRACKING
Due to ________, the
following cracking endothermic reaction takes place:
thermal cracking,
NATURE OF NAPHTHA CRACKING
obtained from
the initial cracking reactions
further crack into lighter olefins
and propagate until the reaction
temperature is brought down
(quenched).
Light hydrocarbons
NATURE OF NAPHTHA CRACKING
If the reaction is continued
indefinitely, branched and
cyclized heavy hydrocarbons will
be produced and _____ will be
generated as the ultimate
product.
coke
NATURE OF NAPHTHA CRACKING
is introduced with the feed to remove the
coke layer on the tube surface by converting coke into carbon
monoxide and hydrogen by water gas reaction,
Steam