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CO2捕集汽-甲烷重整制氢Hydrogen from Steam-Methane Reforming  with CO2 Capture CO2捕集汽-甲烷重整制氢Hydrogen from Steam-Methane Reforming  with CO2 Capture

CO2捕集汽-甲烷重整制氢Hydrogen from Steam-Methane Reforming with CO2 Capture

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  • 更新时间:2021-09-09
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美国能源部(DOE)正在调查联合使用二氧化碳捕获技术。 与德士古和壳牌集成气化联合循环(IGCC)电力系统,生产这两者 商用氢气和电.这代表了使用煤炭资源的高效率策略。 对当前减少温室气体排放的动机敏感。吹氧 夹带气化炉是研究的基础。能源惩罚、资本投资的比较 CO2排放的减少基于全能源循环,包括采矿、煤炭运输, 选煤、气化、气体处理、发电、输送电力或氢气的基础设施 向最终用户输送二氧化碳,并将其管道输送至封存。H2管道的技术方面 超临界CO2管道,以及与各种宿主油藏中的CO2封存有关的问题 考虑过.基准蒸汽-甲烷工艺设计及经济模拟结果 通过改革(SMR)系统,可以测试以何种价格生产煤基甲烷的成本。 氢经济.具有热集成的SMR的ASPEN模型是回顾 与天然气原料组成、脱硫预处理、重整、煤气有关的性能问题 转化和纯化。已经进行了敏感性研究,以检查在 操作压力,蒸汽碳比,以及燃烧空气预热的使用。其他参数 影响氢气生产和燃料使用的是重整反应器进出口温度、换挡策略, 反应器温度、PSA设计及运行。

The U.S. Department of Energy (DOE) is investigating employing CO2-capture technologies combined with Texaco and Shell integrated gasification combined-cycle (IGCC) power systems that produce both merchant hydrogen and electricity. This represents a high efficiency strategy for using the coal-resource base while being sensitive to the current motivation to reduce greenhouse gas emissions. An oxygen-blown entrained gasifier served as the basis for the study. Comparisons of energy penalties, capital investment, and CO2 emission reductions were based on the full-energy cycle including mining, coal transportation, coal preparation, gasification, gas treatment, power generation, infrastructure to transfer power or hydrogen to end users, and pipeline transport of CO2 to sequestration. Technical aspects of H2 pipelines and supercritical CO2 pipelines, as well as issues relating to CO2 sequestering in a variety of host reservoirs were considered. Results from process design and economic simulation of a Benchmark Steam-Methane- Reforming (SMR) system make it possible to test at what price the cost of methane makes coal-base hydrogen economical. An ASPEN model of SMR with heat integration is the basis for a review of performance issues related to natural gas feed composition, desulfurization pretreatment, reforming, gas conversion and purification. Sensitivity studies have been performed to examine the effects of changes in operating pressure, steam-to-carbon ratio, and the use of combustion air preheat. Other parameters that affect hydrogen production and fuel use are reformer reactor inlet and outlet temperatures, shift strategy, reactor temperatures, and PSA design and operation.

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