Production of Heavy Aromatic Hydrocarbons by Catalytic Reforming (1)

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Other Title
  • 接触改質法による重質芳香族の製造 (第1報)
  • Composition of Aromatic Hydrocarbons in Reformate of Heavy Naphthas
  • 重質ナフサの接触改質油中の芳香族組成

Description

Studies were carried out to investigate the composition of C8∼C10 aromatic hydrocarbons in reformed naphtha.<br>1) Straight run Kuwait naphtha (100∼207°C) was reformed using a platinum-alumina commercial reforming catalyst at the temperature 450∼510°C, the pressure 20∼50atm., the liquid hourly space velocity 1∼3 and the mole ratio of hydrogen to hydrocarbon 10. From the above results, the relationship between the operating conditions and the yields or compositions of C6∼C11 aromatic hydrocarbons in those reformates was investigated.<br>2) Kuwait and North Sumatra naphthas having boiling ranges of 100∼140°C, 100∼160°C, 100∼170°C, 100∼180°C, 100∼190°C, 100∼200°C, 100∼207°C and 100∼220°C were reformed. The relation between those fractions and the composition of aromatic hydrocarbon in reformate is discussed.<br>3) The straight run naphthas of Kuwait, Gach Saran, Khafji, North Sumatra, Ekhabinskaya and naphtha obtained from hydrodesulfurization of Khafji residue with a boiling range of 100∼207°C were also reformed. From the data obtained, the characteristic features and composition of C6∼C11 aromatic hydrocarbons in those reformates are discussed.

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