Method for heat processing of pulverized brown coal

• Main Authors: CHUKHANOV, ZINOVY Z, FEDOROV, NIKOLAI A, NIKOLAEV, ANATOLY M, TSUPROV, SERGEI A, CHUKHANOV, ZINOVY F, SHAPATINA, ELIZAVETA A, ZYBALOVA, GALINA P, KARASEV, VADIM A
• Format: Patent
• Language: English
• Published: 08.07.1980
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

According to the invention pulverized brown coal is processed by heating brown coal in two stages. During the first stage brown coal being processed is heated by a gaseous heat carrier to a temperature at which thermal decomposition of the brown coal begins. During the second stage the brown coal being processed is heated by the gaseous heat carrier to a temperature at which an intensive thermal decomposition of the brown coal takes place. The stream of the gaseous heat carrier delivered at the second stage of heating is fed with air oxygen and with low-grade products, such as heavy tars and pyrogenic water which are sprayed into the gaseous heat carrier.