Reaction chamber for a direct contact rotating steam generator

A reaction chamber apparatus of a direct contact rotating steam generator, comprising:

• a fixed combustion vessel;
• a rotatable steam generating vessel in fluid communication with said combustion vessel, said rotatable steam generating vessel being partially filled with a plurality of spherical bodies and having a steam producing section and a homogenizing section, said homogenizing section being placed at an end of said steam producing section opposite said fixed combustion vessel, the vessel having an injection means for water;
• an inlet in said fixed combustion vessel;
• a connection element between said fixed combustion vessel and said rotatable steam generating vessel;
• an outlet at an end of said rotatable vessel;
• a plurality of spherical bodies located in said rotatable steam generating vessel;
• and
• a plurality of partitions being placed between said homogenizing section and said steam producing section.

A method for generating a high pressure steam and CO2 mixture without liquid waste discharge, said method comprising the steps of:

• mixing a low quality fuel with an oxidation gas, said fuel selected from a group consisting of coal, heavy bitumen, vacuum residuals, asphaltin and coke, said oxidation gas selected from a group consisting of oxygen, oxygen-enriched air, and air;
• combusting the mixture under pressure and elevated temperatures in a rotating drum with a plurality of spherical bodies, said spherical bodies having a regenerated surface by grinding solids from combustion and facilitating mixing and heat transfer;
• and
• mixing water containing solids to control temperature and to generate steam in a rotating drum.