| 摘要: |
| 在“碳达峰和碳中和”背景下，国家对天然气的综合利用和清洁生产有更高要求。本文对天然气制炭工艺以及制氢工艺进行了阐述，指出了传统生产工艺的弊端即碳氢元素两者未能同时得到有效利用，造成潜在资源的白白损失。幸运的是，甲烷热裂解技术可以同时实现氢炭联产，且不直接排放CO2，具有显著的经济以及环境效益，因而受到广泛关注。本文综述了四种不同天然气氢炭联产技术，从技术原理、工艺流程、催化体系、尾气排放等方面进行论述，并对四种技术的优缺点进行了对比。其中，熔融法和等离子体法在天然气氢炭联产过程中不产生温室气体，是较为理想的氢炭联产技术。此外，本文提出了天然气氢炭联产未来技术发展和攻关方向的建议。 |
| 关键词: 天然气综合利用 制炭 制氢 氢炭联产 碳中和 |
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| Research progress of Hydrogen-carbon co-production process of natural gas |
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Qin Li1, Zeng Zhengrong1, Zhao Longhao2, Deng Mengjie1, Yang Qing1, Chen Lu1
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1.Southern Sichuan Gasfield,PetroChina Southwest Oil Gasfield Company;2.Southern Sichuan Gasfield，PetroChina Southwest Oil & Gasfield Company
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| Abstract: |
| Against the backdrop of "peak carbon dioxide emissions" and the pursuit of "carbon neutrality"，there is an increased demand from the government for the comprehensive utilisation and clean production of natural gas．This paper elucidates the procedures involved in the generation of carbon and hydrogen from natural gas，while highlighting the drawbacks of conventional production methods．Specifically，the inefficient utilisation of hydrocarbon elements leads to the squandering of potential resources．The technology of methane pyrolysis has the potential to achieve simultaneous production of hydrogen and carbon，while avoiding direct emission of carbon dioxide．This feature has garnered significant interest due to its notable economic and environmental advantages．This paper provides a summary of four distinct technologies for the co-production of hydrogen and carbon from natural gas．The technical principles，process flow，catalytic system，and tail gas emission of each technology are discussed，and a comparative analysis of their respective advantages and disadvantages is presented．Two promising Hydrogen-carbon co-production technologies are the melting method and plasma method，which have the advantage of not emitting glasshouse gases during their operation．These methods represent an ideal approach for Hydrogen-carbon co-production of natural gas．Furthermore，this manuscript proposes recommendations for the prospective technical advancements and research orientations pertaining to the co-production of hydrogen and carbon through natural gas． |
| Key words: natural Gas utilization Charcoal making Hydrogen production Hydrogen-carbon co-production Carbon neutrality |
