METHOD FOR PRODUCING BLENDED COAL AND METHOD FOR PRODUCING COKE

• Main Authors: MATSUI Takashi, DOHI Yusuke, IGAWA Daisuke
• Format: Patent
• Language: English; French; German
• Published: 31.05.2023
• Subjects: CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; LUBRICANTS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE

Provided are a method for producing a coal blend that can produce coke having high strength after carbonization, and a method for producing coke.A method for producing a coal blend by blending plural brands of coal to produce a coal blend includes letting a surface tension of coal when inert is assumed to be 100 vol% be γ100, and letting a surface tension of coal when reactive is assumed to be 100 vol% be γ0, determining a range of γ0 of coal; among brands of coal 1, 2, ... i, ..., and n to be blended in a coal blend, specifying coal i in which γ100 is outside the range of γ0; measuring TI of coal i; and determining the blending ratio of coal i in such a manner that w calculated by formula (1) below is 20.4 mass% or less, w=∑xi×TIi where in formula (1), xi is the blending ratio (mass%) of coal i, TIi is a fraction (vol%) of the inert contained in coal i, and w is the mass fraction (mass%) of the inert of the coal outside the range of γ0 in the coal blend.