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

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

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  • 更新時(shí)間：2021-09-09
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美國能源部（DOE）正在調查聯(lián)合使用二氧化碳捕獲技術(shù)。 與德士古和殼牌集成氣化聯(lián)合循環(huán)（IGCC）電力系統，生產(chǎn)這兩者 商用氫氣和電.這代表了使用煤炭資源的高效率策略。 對當前減少溫室氣體排放的動(dòng)機敏感。吹氧 夾帶氣化爐是研究的基礎。能源懲罰、資本投資的比較 CO2排放的減少基于全能源循環(huán)，包括采礦、煤炭運輸， 選煤、氣化、氣體處理、發(fā)電、輸送電力或氫氣的基礎設施 向最終用戶(hù)輸送二氧化碳，并將其管道輸送至封存。H2管道的技術(shù)方面 超臨界CO2管道，以及與各種宿主油藏中的CO2封存有關(guān)的問(wèn)題 考慮過(guò).基準蒸汽-甲烷工藝設計及經(jīng)濟模擬結果 通過(guò)改革（SMR）系統，可以測試以何種價(jià)格生產(chǎn)煤基甲烷的成本。 氫經(jīng)濟.具有熱集成的SMR的ASPEN模型是回顧 與天然氣原料組成、脫硫預處理、重整、煤氣有關(guān)的性能問(wèn)題 轉化和純化。已經(jīng)進(jìn)行了敏感性研究，以檢查在 操作壓力，蒸汽碳比，以及燃燒空氣預熱的使用。其他參數 影響氫氣生產(chǎn)和燃料使用的是重整反應器進(jìn)出口溫度、換擋策略， 反應器溫度、PSA設計及運行。

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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