CuO/CaO双流化床环钙生物质气化炉强化制氢过程模拟

IF 3.2 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Han Saem Park, Hyun Jun Park, Ha Eun Lee, Seung Seok Oh, Jester Lih Jie Ling, Bhanupratap Singh Solanki, Hyungwoong Ahn, See Hoon Lee
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引用次数: 0

摘要

在本研究中,研究了利用生物质原料,包括木材废料(WW)、牛粪(CM)和生物原油(BC),通过钙环(Ca-Looping)气化工艺制氢。该新型系统采用双流化床系统,包括气化反应器和再生空气反应器,气化反应器由蒸汽流化的CuO和CaO混合物组成。研究了气化温度(Tg)、当量比(E/R)、蒸汽质量流量(Msteam)和CaO循环速率(CCaO)等关键操作参数变化对制氢量的影响。在高于700°C的温度下,没有观察到所有原料的产氢量增加,这被证实是由于碳化反应失活。随着E/R比的增大,合成气中CO2体积分数增大,H2体积分数减小。随着蒸汽流量的增加,H2产量也在不断增加。通过CaO的碳化作用,CO2捕集能力随着CaO循环速率的增加而增加,当循环速率达到100 kg/hr以上时达到平稳期。这些发现突出了生物质ca - loop气化工艺在生产高纯度氢气的同时显著减少二氧化碳排放的潜力,将其定位为可持续能源生产的有前途的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Process Simulation of a Dual Fluidized Bed Ca-Looping Biomass Gasifier with CuO/CaO for Enhanced Hydrogen Production

Process Simulation of a Dual Fluidized Bed Ca-Looping Biomass Gasifier with CuO/CaO for Enhanced Hydrogen Production

In this study, H2 production through Calcium-Looping (Ca-Looping) gasification process using biomass feedstocks, including wood waste (WW), cow manure (CM), and biocrude (BC), was investigated. This novel system employed a dual fluidized bed system, comprising a gasifier reactor with a mixture of CuO and CaO fluidized by steam, and a regenerative air reactor. Hydrogen production was investigated as a function of variations in key operating parameters, including gasification temperature (Tg), equivalence ratio (E/R), steam mass flow rate (Msteam), and CaO circulation rate (CCaO). Enhancement in hydrogen production was not observed at temperatures above 700 °C for all feedstocks, which was confirmed to be due to the deactivation of the carbonation reaction. An increasing CO2 volume fraction and decreasing H2 volume fraction in the synthesis gas were observed as the E/R ratio increased. Additionally, H2 production increased continuously with higher steam flow rate. CO2 capturing capacity, through carbonation of CaO increased with CaO circulation rates, reaching a plateau as the circulation rate reach above 100 kg/hr. These findings highlight the potential of the biomass Ca-Looping gasification process to produce high-purity H2 while significantly reducing CO2 emissions, positioning it as a promising pathway for sustainable energy production.

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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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