PROCEDURE FOR THE PRODUCTION OF A METHANIC RICH GAS FROM COAL.

摘要

THE INVENTION REFERS TO A PROCESS THAT INCLUDES THE FOLLOWING STAGES: A) COAL MILLING SIZE LESS THAN 5 MM AND PREFERABLY LESS THAN 2MM, B) ADDITION OF ONE OR MORE ALKALINE OR ALKALINE TREATMENT COMPOUNDS IN A MINE CARBON. ALKALINE OR ALKALINE TERRAIN IONS FROM 4 TO 20% IN RELATION TO ASH FREE COAL, AND POSTERIOR DRYING OF COAL WITH ADDITIVE; C) POSSIBLE PELETIZATION OF THE COAL WITH THE ADDITIVE TO FORM TABLETS OF MAXIMUM SIZE BETWEEN 3MM AND 5 CM, AND PREFERABLY BETWEEN 3MM AND 2 CM; D) COAL GASIFICATION WITH THE ADDITIVE AND METANATION OF THE GAS PRODUCED IN A STAGE IN COAL FIXED BED THAT DESCENDS IN COUNTER-CURRENT WITH VAPOR, IN THE PRESENCE OF AN AMOUNT OF AIR LESS THAN 35% IN WEIGHT AND A PURCHASED OXYGEN AMOUNT OF 1 AND 25% IN WEIGHT WITH RESPECT TO THE FREE DRY COAL OF ASH AT A PRESSURE GREATER THAN 25 ATMOSPHERES AND TEMPERATURE BETWEEN 400 AND 800 DEGREES DEGREE, PREFERABLY BETWEEN 450 AND 750 DEGREES DEGREE; E) SEPARATION OF THE GAS PRODUCED IN D), OF THE UNREACTIONED VAPOR AND OF THE CONDENSABLE COMPOUNDS FORMED, AND F) SEPARATION OF THE ACIDAL GASES OF THE GASEOUS MIXTURE OF HIGH CONTENT IN METHANE OBTAINED