Berikut ini adalah pertanyaan dari aenaana488 pada mata pelajaran B. inggris untuk jenjang Sekolah Menengah Atas
Before crude oil can be used, it has to be processed in a refinery andconverted into many different products. Oil is first distilled, which breaks it down
into gas, petrol, paraffin, lubricating oil, diesel, and other fuel oils and asphalt. This
is done by heating the crude oil, which is pumped to the bottom of a tall steel tube
called a ‘fractionating tower’. This tower is divided into compartments all the way
up and the very hot petroleum enters to the bottom of the tower as a vapor. Crude
oil is made up of a number of different ingredients and each of these boils and
vaporizes at a different temperature. The vapors at the bottom of the tower are the
hottest, and those at the higher levels are cooler. At the bottom of each
compartment in the tower are trays, and the different vapors condense, or turn
into liquid, on the trays at different levels.
Petrol collects in the top trays, paraffin condenses a little lower down and
the other oils become liquids at even lower levels. In this way, the crude oil is
separated into the various fractions, which are drawn off ready for further refining.
People need to process crude oil before using it.
into gas, petrol, paraffin, lubricating oil, diesel, and other fuel oils and asphalt. This
is done by heating the crude oil, which is pumped to the bottom of a tall steel tube
called a ‘fractionating tower’. This tower is divided into compartments all the way
up and the very hot petroleum enters to the bottom of the tower as a vapor. Crude
oil is made up of a number of different ingredients and each of these boils and
vaporizes at a different temperature. The vapors at the bottom of the tower are the
hottest, and those at the higher levels are cooler. At the bottom of each
compartment in the tower are trays, and the different vapors condense, or turn
into liquid, on the trays at different levels.
Petrol collects in the top trays, paraffin condenses a little lower down and
the other oils become liquids at even lower levels. In this way, the crude oil is
separated into the various fractions, which are drawn off ready for further refining.
People need to process crude oil before using it.
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Last Update: Wed, 22 Feb 23