FEEDSTOCK FOR NEEDLE COKE, AND NEEDLE COKE - NIPPON STEEL CHEMICAL & MAT CO LTD

Title:

FEEDSTOCK FOR NEEDLE COKE, AND NEEDLE COKE

Document Type and Number:

WIPO Patent Application WO/2019/188280

Kind Code:

A1

Abstract:

Provided is a feedstock with which it is possible to produce a low-CTE, low-puffing needle coke. A modified feedstock for needle coke characterized in that the PDQI value calculated by equation (1) is 2-14, the ratio (HNα/Hα) of α-naphthene hydrogen (HNα) to α-position hydrogen (Hα) measured by 1H-NMR is 0.10-0.60, and the aromatic index fa is 0.50-0.90. Equation (1): PDQI = H% × 10 × (HNβ/H) (where H% is the amount of hydrogen determined by elemental analysis, and HNβ/H is the ratio of β-naphthene hydrogen and total hydrogen measured by 1H-NMR)

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Inventors:

HADA KYOHEI (JP)
TAKEDA NAOTO (JP)
FUKUDA TETSUSEI (JP)
KAWANO YOICHI (JP)

Application Number:

PCT/JP2019/010228

Publication Date:

October 03, 2019

Filing Date:

March 13, 2019

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Assignee:

NIPPON STEEL CHEMICAL & MAT CO LTD (JP)

International Classes:

C10B57/04; C21C5/52; B01J23/755; B01J23/883

Foreign References:

JPS60149690A	1985-08-07
JP2017048380A	2017-03-09
JPS617385A	1986-01-14

Attorney, Agent or Firm:

SASAKI Kazuya et al. (JP)

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