Low-Carbon Dispatch of a High-Altitude Electricity–Heat–Gas–Hydrogen–Oxygen Integrated Energy System with Oxy-Fuel Combustion-Based CCUS

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a comprehensive optimization model integrating electricity, heat, gas, hydrogen, and oxygen with CCUS, useful for advancing multi-energy system research.

🏢実務担当者:Demonstrates potential cost and emission reductions through coordinated operation of energy systems with CCUS and hydrogen, valuable for energy park operators.

🏛政策担当者:Highlights the benefits of integrating CCUS and hydrogen in regional energy planning, informing decarbonization policy for industrial parks.

<title>Abstract</title> <p>To address the challenges of prominent oxygen demand, strong renewable-energy uncertainty, and low-carbon scheduling in high-altitude parks, this paper proposes a low-carbon optimal scheduling model for a multi-regional electricity– heat–gas–hydrogen–oxygen integrated energy system considering oxygen demand. The proposed framework incorporates electrolytic hydrogen-production by-product oxygen, coordinated oxygen supply by VPSA/ASU units, natural gas–hydrogen co-firing, oxy-fuel combustion CCUS, and inter-park electricity–hydrogen–oxygen mutual support, thereby integrating high-altitude oxygen security and low-carbon system operation into a unified scheduling framework. To characterize the uncertainties of wind power, photovoltaic output, and multiple load types, Latin hypercube sampling and K-means clustering are employed to generate typical source–load scenarios, while the scenario-probability-weighted expected operating cost is adopted as the optimization objective. Case-study results show that the proposed model effectively improves renewable-energy accommodation, multi-energy complementarity, and low-carbon operational performance. Compared with the baseline scenario, the total operating cost and actual carbon emissions in the fully coordinated scenario are reduced by 16.07% and 35.11%, respectively. Meanwhile, the share of P2H by-product oxygen in the local multi-source oxygen supply structure of the three parks is approximately 38%–52%, with the daily share in IES3 reaching 52.19%, which reduces the burden on VPSA and ASU oxygen production and provides oxygen-source support for oxy-fuel combustion CCUS. The results demonstrate that explicit oxygen-energy-flow modeling can enhance oxygen-supply security in high-altitude parks while improving renewable-energy utilization and low-carbon scheduling performance.</p>

• Research Square https://doi.org/10.21203/rs.3.rs-10056358/v1first seen 2026-07-14 04:27:16