This is a technology that produces basic raw materials for the petrochemical industry, such as ethylene, propylene, benzene, and toluene, by thermally cracking naphtha at high temperatures. In Japan and Western European countries, the demand for automobile gasoline is low compared to other petroleum products, so there is a surplus of naphtha fraction obtained by distilling crude oil. Heavy naphtha is used for automobile gasoline after increasing its octane number, but light naphtha is used as a petrochemical raw material because there is no economical way to increase the octane number. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ナフサを高い温度で熱分解して,エチレン,プロピレン,ベンゼン,トルエンなどの石油化学工業の基礎原料を生産する技術をいう。日本や西ヨーロッパ諸国では,自動車ガソリンの需要がその他の石油製品にくらべて少ないので,原油を蒸留して得られるナフサ留分が余り気味である。重質ナフサはオクタン価を高めて自動車ガソリンに使われるが,軽質ナフサは,オクタン価向上のための経済的な手段がないために,石油化学原料として使われる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
>>: Naphtha (English spelling)
…According to another legend, when she wiped away...
Also called a submersible research vessel. A subme...
〘Noun〙① = Azura (sweet kudzu) ① ※Shosoin documents...
Also known as hydrometeorology. A branch of applie...
This system existed before the enactment of the C...
It is one of the policies adopted to suppress the ...
...One of the highlights is the exploits of Yamam...
Money lenders. They were the main players in earl...
...Many of them live in East Kalimantan, Indonesi...
…These were later found to be RNA-type tumor viru...
...A disease characterized by the occurrence of n...
…Figure 4 shows an outline of chord progressions ...
An American film made in 1977. Directed by George ...
A volcano that stands on the border between Ishika...
…The same goes for the lines, each of which has i...