NAPHTHA INSPECTION METHOD
To provide a naphtha inspection method for accurately determining acceptance/rejection of naphtha as a raw material naphtha to be used for lower olefin production, in decomposing the naphtha containing ether to manufacture lower olefins, by applying a pipe-type heating method or steam cracking.SOLUT...
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Format | Patent |
Language | English Japanese |
Published |
29.05.2023
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Abstract | To provide a naphtha inspection method for accurately determining acceptance/rejection of naphtha as a raw material naphtha to be used for lower olefin production, in decomposing the naphtha containing ether to manufacture lower olefins, by applying a pipe-type heating method or steam cracking.SOLUTION: In a naphtha inspection method, naphtha is accepted as a raw material naphtha to be used for lower olefin production, if a content of ether with an asymmetric structure in the naphtha, being measured using gas chromatography, is 20,000 mass ppm or lower when converted to a content of oxygen atoms derived from the ether.SELECTED DRAWING: Figure 1
【課題】管式加熱法又はスチーム・クラッキング法により、エーテルを含有するナフサを分解して低級オレフィンを製造するにあたり、低級オレフィン製造に用いる原料ナフサとしての合否を的確に判定するためのナフサの検査方法を提供する。【解決手段】ガスクロマトグラフィー法によって測定した、ナフサ中の非対称構造を有するエーテルの含有量が、該エーテルに由来する酸素原子の含有量に換算して20,000質量ppm以下であるナフサを、低級オレフィン製造に用いる原料ナフサとして合格とするナフサの検査方法。【選択図】図1 |
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AbstractList | To provide a naphtha inspection method for accurately determining acceptance/rejection of naphtha as a raw material naphtha to be used for lower olefin production, in decomposing the naphtha containing ether to manufacture lower olefins, by applying a pipe-type heating method or steam cracking.SOLUTION: In a naphtha inspection method, naphtha is accepted as a raw material naphtha to be used for lower olefin production, if a content of ether with an asymmetric structure in the naphtha, being measured using gas chromatography, is 20,000 mass ppm or lower when converted to a content of oxygen atoms derived from the ether.SELECTED DRAWING: Figure 1
【課題】管式加熱法又はスチーム・クラッキング法により、エーテルを含有するナフサを分解して低級オレフィンを製造するにあたり、低級オレフィン製造に用いる原料ナフサとしての合否を的確に判定するためのナフサの検査方法を提供する。【解決手段】ガスクロマトグラフィー法によって測定した、ナフサ中の非対称構造を有するエーテルの含有量が、該エーテルに由来する酸素原子の含有量に換算して20,000質量ppm以下であるナフサを、低級オレフィン製造に用いる原料ナフサとして合格とするナフサの検査方法。【選択図】図1 |
Author | KIKUCHI SATOSHI KYUSHO MASAHIRO SHIMIZU TOSHIKATSU SHIBA YUSUKE |
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DocumentTitleAlternate | ナフサの検査方法 |
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Snippet | To provide a naphtha inspection method for accurately determining acceptance/rejection of naphtha as a raw material naphtha to be used for lower olefin... |
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SubjectTerms | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
Title | NAPHTHA INSPECTION METHOD |
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