Sustainable methanol production utilizing methane pyrolysis carbon black via integrated chemical looping combustion and SOEC systems

초록

Turquoise hydrogen enhances economic viability by co-producing carbon black, although potential carbon black market oversaturation necessitates a sustainable utilization pathway. This study proposes a novel integration of green and turquoise hydrogen production with chemical looping combustion (CLC), establishing a highly efficient system that converts solid carbon into a useful energy source, thereby eliminating the carbon disposal challenge. The CLC process inherently enables CO2 capture and, through complete internal thermal integration, maximizes overall energy efficiency while significantly reducing the environmental footprint and operating costs. H2 and captured CO2 are subsequently utilized for sustainable methanol synthesis, providing a competitive pathway for low-carbon fuel production. Based on the thermodynamic assessment, the system operates at an energy efficiency of 72.2%. The specific total CO2 equivalent (eq.) emissions are 0.51 t/t MeOH. The levelized cost of methanol (LCOM) is estimated at $192/t with a carbon tax, corresponding to a 49.5% improvement over conventional methanol production. © 2026 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

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