▎ 摘　　要

NOVELTY - Reactor system (300) comprises: microwave energy source (304) configured to generate microwave energy; field-enhancing waveguide (FEWG) (305) coupled to microwave energy source, where FEWG includes a field-enhancing zone having a cross-sectional area that decreases along a length of the FEWG, and the field-enhancing zone comprises supply gas inlet (302) configured to receive supply gas, reaction zone configured to generate a plasma in response to excitation of the supply gas by the microwave energy, process inlet configured to inject raw material into reaction zone, and a constricted region configured to retain at least some of generated plasma within the reaction zone; an expansion chamber in fluid communication with the constricted region and configured to expand the plasma; and an outlet configured to output many carbon-inclusive particles derived from the expanded plasma and the raw material. USE - The system is useful for producing carbon agglomerates. DESCRIPTION OF DRAWING(S) - The figure shows a simplified vertical cross-section of a microwave plasma reactor. Reactor system (300) Inlet (302) Microwave energy source (304) Field-enhancing waveguide (305) Barrier (310)