Process and apparatus for feeding particulate material into a pressure vessel

摘要: An improved method and apparatus for feeding a crushed or pulverized solid supply material such as coal the like, from source under ambient pressure into reactor like which is significantly higher pressure; in connection with hydrogenation/oxidation process producing so-called "fuel" "synthesis" gases. A liquefied gas carbon dioxide fed moving of materials (as may be contained closed casing screw conveyor/extruder like) order to form slurry suitable pumped receiver against its superior pressure. Process temperatures are so controlled that input component migrates toward lower feed inlet end conveyor response at discharge conveyor, it solidifies particles intermingle substantially fill interstices between particles. There thus provided differential "block" opposes would otherwise cause blow-backs through system; therefore need intermediate pressure-lock devices obviated. Ancillary means efficient supply/recovery/reuse slurrying heat transfer liquids involved also disclosed.