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Solar-thermal Production of HCNG and Hydrogen

机译：HCNG和氢的光热生产

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摘要

A transport tube reactor solar-thermal natural gas dissociation process is being developedrnfor potential application to fleet fueling facilities in the desert SW United States. Thernreactor consists of concentric graphite and quartz tubes heated using concentratedrnsunlight. A pilot scale process being operated at NREL has demonstrated 70% singlernpass thermal dissociation of methane at a temperature of ~2000 K. The reaction isrncarried out in approximately 10 milliseconds. For this version of the process, thernproduced carbon black can be separated using a baghouse filter and sold into the tirernbusiness. The carbon black is amorphous and nanosized. The gas product produced inrnone-step is a high hydrogen content HCNG fuel that will need diluted with NG to obtainrna 10 to 15% hydrogen containing HCNG suitable for filling CNG vehicles. Some of thernHCNG can be processed through a pressure swing absorber (PSA) to obtain purernhydrogen. A scenario for a large fleet fueling station in the Phoenix area has beenrndeveloped.
机译：正在开发一种运输管式反应堆太阳能热解离工艺，以潜在地应用于美国沙漠西南部的船队加油设施。反应器由同心石墨和石英管组成，石英管使用集中的阳光加热。在NREL上运行的中试规模工艺已证明，在约2000 K的温度下，甲烷有70％的甲烷单程热解离。该反应在大约10毫秒内进行。对于此方法版本，可以使用布袋除尘器将分离出的炭黑分离并出售给轮胎业务。炭黑是无定形的并且是纳米级的。一步一步生产的气体产品是高氢含量的HCNG燃料，需要用NG稀释才能获得适合加注CNG车辆的10％至15％氢含量的HCNG。某些HCNG可以通过变压吸收器（PSA）进行处理以获得纯氢。凤凰地区大型车队加油站的方案已经开发。

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  • 来源
  • 会议地点 Washington DC(US)
  • 作者

    Alan W. Weimer; Jaimee K. Dahl; Karen J. Buechler; Allan Lewandowski; CarlrnBingham;

  • 作者单位

    Department of Chemical Engineering University of ColoradornBoulder, CO 80309-0424rn303-492-7471rn303-492-4341 (FAX);

    Department of Chemical Engineering University of ColoradornBoulder, CO 80309-0424rn303-492-7471rn303-492-4341 (FAX);

    Department of Chemical Engineering University of ColoradornBoulder, CO 80309-0424rn303-492-7471rn303-492-4341 (FAX);

    National Renewable Energy Laboratory 1617 Cole BoulevardrnGolden, CO 80401-3393rn303-384-7470rn303-384-7495 (FAX);

    National Renewable Energy Laboratory 1617 Cole BoulevardrnGolden, CO 80401-3393rn303-384-7470rn303-384-7495 (FAX);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 氢能及其利用;
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