• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Greenhouse Gas Control Technologies >REDUCTION OF CO_2 EMISSIONS BY ADDITION OF HYDROGEN TO NATURAL GAS
【24h】

REDUCTION OF CO_2 EMISSIONS BY ADDITION OF HYDROGEN TO NATURAL GAS

机译：通过向天然气添加氢气来减少CO_2排放

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Hydrogen gas could replace natural gas with the advantage that CO_2 emissions would be eliminated. Making such a switch would require a completely new infrastructure whereas a partial conversion might be achieved by blending some hydrogen into existing natural gas systems. The consequences and costs of introducing up to 25% volume hydrogen into gas distribution systems are presented in this paper and practical scenarios for a stepwise conversion are proposed. Small additions can be accommodated easily but larger additions in this range would require modifications to burners and controls in many types of consumer equipment. Distribution networks have adequate capacity for the most part but some elements would need to be upgraded. Uncertainties as to the metallurgical integrity of the high pressure section of networks when hydrogen is introduced are discussed. Large variations in gas consumption over the year would lead to large composition variations when the supply of hydrogen is constant. Development of composition tolerant devices rather than installation of surplus hydrogen capacity or large amounts of hydrogen storage is proposed. Some consumers of gas would be subject to specific effects when gas specifications are altered by hydrogen addition. The key effects on devices such as gas engines and CNG vehicles are discussed. The marginal costs of CO_2 avoidance when the hydrogen is generated by reforming of natural gas with CO_2 capture and sequestration are presented for scenarios in three countries. The paper also assesses overall safety concluding that this would not be compromised and would tend to be enhanced by the inspections and checks made during a hydrogen introduction programme.
机译：氢气可以取代天然气，优点是CO_2排放将被淘汰。制造这种开关需要完全新的基础设施，而可以通过将一些氢气混合到现有的天然气系统中来实现部分转换。在本文中提出了在本文中引入了高达25％体积氢气分配系统的后果和成本，并提出了逐步转换的实际情况。可以容易地容纳小额，但在此范围内更大的添加将需要修改燃烧器和控制许多类型的消费设备。分销网络在大多数情况下具有足够的容量，但需要升级一些元素。讨论了氢引入氢气时高压部分的冶金完整性的不确定性。当氢气供应恒定时，一年中的气体消耗的大变化会导致大的组成变化。提出了构成耐受装置的研制而不是安装剩余氢气容量或大量的储氢。当气体规格通过氢添加改变时，一些气体消费者将受到特异性效果。讨论了对燃气发动机和CNG车辆等设备的关键影响。通过使用CO_2捕获和封存的天然气重整天然气产生氢气时CO_2避免的边际成本，在三个国家的情况下出现了封存。本文还评估了整体安全结束，即这不会受到损害，趋于在氢引入计划期间的检查和支票趋于加强。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号