PROCESS FOR THE PRODUCTION OF SYNTHESIS GAS BY MEANS OF A FLUID BED GASIFICATION REACTOR FED WITH CARBONACEOUS MATERIAL AND DEVICE SUITABLE FOR THE PURPOSE

摘要

A process for the production of synthesis gas which comprises : feeding a carbonaceous material having a particle-size lower than or equal to 50 mm, to a gasification reactor; feeding an oxidizing gas to the bottom of the reactor at a flow-rate which is such as to give the solid mass present in the reactor an aspect of a biphasic bed; filtering the solid particles entrained by the gas, in a cyclone filter positioned internally at the top of the reactor; discharging from the cyclone filter a gaseous stream essentially consisting of synthesis gas and unreacted oxidizing gas; and recycling the filtered solid particles, discharged at the base of the cyclone, directly to the biphasic bed, through an inner duct.