大型海藻微波热解制氢特性研究

吴爽; 丁巍巍; 刘瑞; 薛原; 王鑫

doi:10.12434/j.issn.2097-2547.20230195

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大型海藻微波热解制氢特性研究

制氢与氢能开发利用

- 大型海藻微波热解制氢特性研究
- Study on characteristics of hydrogen production by microwave-assisted pyrolysis of macroalgae
- 低碳化学与化工 2024, 49(1): 119-124.
- 作者机构：
  
  1.泉州职业技术大学福建省清洁能源应用技术协同创新中心，福建泉州 362268
  2.大连海洋大学海洋科技与环境学院，辽宁大连 116023
  3.中石化（大连）石油化工研究院有限公司，辽宁大连 116045
- 作者简介：
  
  吴爽（1980—），博士，讲师，研究方向为催化吸附材料、生物质热解，E-mail：wushuang@dlou.edu.cn。
  王鑫（1979—），博士，高级工程师，研究方向为催化吸附及生物能源，E-mail：wangxin02.fshy@sinopec.com。
- 基金信息：
  
  福建省清洁能源应用技术协同创新中心2022年开放课题(QJNY22-05);辽宁省博士科研启动基金计划(2019-BS-034)
- DOI：10.12434/j.issn.2097-2547.20230195
  中图分类号：
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吴爽,丁巍巍,刘瑞等.大型海藻微波热解制氢特性研究[J].低碳化学与化工,2024,49(01):119-124.

WU Shuang,DING Weiwei,LIU Rui,et al.Study on characteristics of hydrogen production by microwave-assisted pyrolysis of macroalgae[J].Low-carbon Chemistry and Chemical Engineering,2024,49(01):119-124.
吴爽,丁巍巍,刘瑞等.大型海藻微波热解制氢特性研究[J].低碳化学与化工,2024,49(01):119-124. DOI： 10.12434/j.issn.2097-2547.20230195.

WU Shuang,DING Weiwei,LIU Rui,et al.Study on characteristics of hydrogen production by microwave-assisted pyrolysis of macroalgae[J].Low-carbon Chemistry and Chemical Engineering,2024,49(01):119-124. DOI： 10.12434/j.issn.2097-2547.20230195.

摘要

大型海藻无需耕地、不含难热解的木质素，是降碳减排、生产小分子生物燃料的理想原料。对大型海藻（包括海带、蜈蚣藻、孔石莼和海黍子）进行微波热解，并与落叶松进行对比。研究了微波热解过程的升温行为、气体释放行为及氢气生成曲线，比较了微波热解的产物分布、气体组成和气化指标，进一步利用Ca-Al（CaO-Al,2,O,3,）吸附剂原位吸收海带微波热解产生的二氧化碳（CO,2,），强化海带的定向转化制氢。结果表明，大型海藻比落叶松具有更快的升温行为、更好的制氢效果，尤其海带的氢气产率（16.40 g/kg）为落叶松的3倍。添加Ca-Al吸附剂能够进一步增强海带的微波热解制氢效率，当海带与Ca-Al吸附剂的质量比为1.0:3.0时，氢气产率达到44.24 g/kg，气化效率可达68.57%，气体产物中氢气含量高达77.24%。

Abstract

Macroalgae does not require arable land and does not contain lignin that is difficult to pyrolysis, which is an ideal raw material for carbon reduction and the production of small molecule biofuels. The microwave-assisted pyrolysis of large seaweed (including kelp, grateloupia livida, ulva pertusa kjellm and sargassum miyabei) was studied and compared with that of larch. The temperature rise behavior, gas release behavior and hydrogen generation curve during microwave-assisted pyrolysis were studied and the product distribution, gas composition and gasification index were compared. Further, Ca-Al (CaO-Al,2,O,3,) sorbent was used to absorb carbon dioxide (CO,2,) generated by microwave-assisted pyrolysis of kelp in situ, and the directed conversion of kelp to hydrogen production was strengthened. The results show that macroalgae had faster heating behavior and better hydrogen production effect than larch, especially the hydrogen yield of kelp (16.40 g/kg) is three times that of larch. The addition of Ca-Al sorbent can further enhance the hydrogen production efficiency of kelp with microwave-assisted pyrolysis. When the mass ratio of kelp to Ca-Al sorbent is 1.0:3.0, the hydrogen yield can reach 44.24 g/kg, and the gasification efficiency reaches 68.57%, the content of hydrogen in the gas product is as high as 77.24%.

关键词

Ca-Al吸附剂微波热解海带大型海藻氢气

Keywords

Ca-Al sorbentmicrowave-assisted pyrolysiskelpmacroalgaehydrogen

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