基于3A分子筛和TiO2载体的钙基碳载体对污泥气化的影响

doi:10.16085/j.issn.1000-6613.2017-0238

化工进展 ›› 2017, Vol. 36 ›› Issue (10): 3697-3703.DOI: 10.16085/j.issn.1000-6613.2017-0238

基于3A分子筛和TiO₂载体的钙基碳载体对污泥气化的影响

张琪¹, 汪根宝², 李蒙², 张磊², 陈时熠¹, 向文国¹

1. 东南大学能源热转换及其过程测控教育部重点实验室, 江苏南京 210009;
2. 中国石化南京工程有限公司, 江苏南京 211100

收稿日期:2017-02-15 修回日期:2017-03-07 出版日期:2017-10-05 发布日期:2017-10-05
通讯作者: 向文国,教授,博士生导师.
作者简介:张琪(1991-),女,硕士研究生,研究方向为污泥气化处理.
基金资助:
国家自然科学基金项目（51576042）。

Effects of 3A molecular sieve and TiO₂supported CaO on the gasification of sewage sludge

ZHANG Qi¹, WANG Genbao², LI Meng², ZHANG Lei², CHEN Shiyi¹, XIANG Wenguo¹

1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210009, Jiangsu, China;
2. SINOPEC Nanjing Engineering Co., Ltd., Nanjing 211100, Jiangsu, China

Received:2017-02-15 Revised:2017-03-07 Online:2017-10-05 Published:2017-10-05

摘要/Abstract

摘要： CaO具有良好的CO₂吸收性能且对焦油裂解有促进作用，可实现污泥气化制取富氢气体，是无害化处理污泥的一种方式，具有较好的应用前景。本文以3A分子筛和TiO₂为载体，分别对CaO进行改性，制取了CaO-3A、CaO-TiO₂和CaO-TiO₂-3A三种碳载体，研究了不同温度下其作为CO₂碳载体对污泥气化特性的影响。实验结果表明：钙基碳载体和气化温度对污泥气化影响显著，添加碳载体以及提高气化温度均有利于提高H₂产量和污泥能量转换效率；CaO-TiO₂-3A性能表现优越，气化温度650℃时，H₂浓度高达84.2%，碳转化率最高达46%；气化温度850℃时，H₂产量和能量转换率最高。研究表明，CaO-TiO₂-3A碳载体具有优越的污泥催化制氢性能。

关键词: 污泥, 气化, 氧化钙, 碳载体, 废物处理

Abstract: CaO can be used to absorb CO₂ and to promote the tar cracking in sludge gasification to produce hydrogen-rich gases. Gasification of CaO-sewage sludge is a promising alternative technology to use sewage sludge and to reduce the secondary pollutions. In this work,3A molecular sieve and TiO₂ were used as the supports to modify CaO. Three CO₂ sorbents were prepared:CaO-3A molecular sieve,CaO-TiO₂_,and CaO-TiO₂-3A molecular sieve. The effects of modified CaO as the CO₂ sorbents on the gasification of sewage sludge in a fixed bed reactor were studied at different temperatures. The experimental results showed that the increase of gasification temperature and the addition of the CO₂ sorbents could both promote the H₂ production and energy conversion rate. Among the three modified CaO CO₂ sorbents,CaO-TiO₂-3A exhibited the highest H₂yield and energy conversion rate. With the CaO-TiO₂-3A sorbent,the concentration of H₂ reached 84.2% and the carbon conversion rate was 46% at 650℃. The experiments results showed that CaO-TiO₂-3A appeared to have the best adsorption and hydrogen production performances.

Key words: sewage sludge, gasification, calcium oxide, absorbents, waste treatment

中图分类号:

X703

张琪, 汪根宝, 李蒙, 张磊, 陈时熠, 向文国. 基于3A分子筛和TiO₂载体的钙基碳载体对污泥气化的影响[J]. 化工进展, 2017, 36(10): 3697-3703.

ZHANG Qi, WANG Genbao, LI Meng, ZHANG Lei, CHEN Shiyi, XIANG Wenguo. Effects of 3A molecular sieve and TiO₂supported CaO on the gasification of sewage sludge[J]. Chemical Industry and Engineering Progress, 2017, 36(10): 3697-3703.

参考文献

[1] DOMINGUEZ A,MENENDEZ J A,INGUANZO M,et al.Investigations into the characteristics of oils produced from microwave pyrolysis of sewage sludge[J].Fuel Processing Technology,2005,86(9):1007-1020.
[2] FYTILI D,ZABANIOTOU A.Utilization of sewage sludge in EU application of old and new methods:a review[J].Renewable & Sustainable Energy Reviews,2008,12(1):116-140.
[3] DOMINGUEZ A,MENENDEZ J A,PIS J J.Hydrogen rich fuel gas production from the pyrolysis of wet sewage sludge at high temperature[J].Journal of Analytical & Applied Pyrolysis,2006,77:127-132.
[4] ANDREAS M,WIEDEMANN D,SEEBACHER G,et al.Steam/oxygen gasification of dried sewage sludge in a two-stage gasifier:effects of the steam to fuel ratio and ash of the activated carbon on the production of hydrogen and tar removal[J].Energy,2015,17(s2):135.
[5] GIL-LALAGUNA N,SANCHEZ J L,MURILLO M B,et al.Air-steam gasification of char derived from sewage sludge pyrolysis.Comparison with the gasification of sewage sludge[J].Fuel,2014,129(4):147-155.
[6] CIESLIK B M,NAMIESNIK J,KONIECZKA P.Review of sewage sludge management:standards,regulations and analytical methods[J].Journal of Cleaner Production,2015,90:1-15.
[7] HU M,GUO D,MA C,et al.Hydrogen-rich gas production by the gasification of wet MSW (municipal solid waste) coupled with carbon dioxide capture[J].Energy,2015,90:857-863.
[8] WANG J,WEI W.Factors influencing fermentative hydrogen production:a review[J].International Journal of Hydrogen Energy,2009,34(2):799-811.
[9] WANG J,WEI W.Experimental design methods for fermentative hydrogen production:A review[J].International Journal of Hydrogen Energy,2009,34(1):235-244.
[10] GIL-LALAGUNA N,SANCHEZ J L,MURILLO M B,et al.Air-steam gasification of sewage sludge in a fluidized bed.Influence of some operating conditions[J].Chemical Engineering Journal,2014,248:373-382.
[11] HUFTON J R,MAYORGA S,SIRCAR S.Sorption-enhanced reaction process for hydrogen production[J].AIChE Journal,1999,45(2):248-256.
[12] AND A L O,HARRISON D P.Hydrogen production using sorption-enhanced reaction[J].Industrial & Engineering Chemistry Research,2001,40(23):5102-5109.
[13] HAN C,HARRISON D P.Multicycle performance of a single-step process for H₂ production[J].Separation Science and Technology,1997,32(1-4):681-697.
[14] PALO D R,DAGLE R A,HOLLADAY J D.Methanol steam reforming for hydrogen production[J].Chemical Reviews,2007,107(51):3992-4021.
[15] LIN S,HARADA M,SUZUKI Y,et al.Hydrogen production from coal by separating carbon dioxide during gasification[J].Fuel,2002,81(16):2079-2085.
[16] WEIMER T,BERGER R,HAWTHORNE C,et al.Lime enhanced gasification of solid fuels:examination of a process for simultaneous hydrogen productionand CO₂ capture[J].Fuel,2008,87(8/9):1678-1686.
[17] HAN L,WANG Q,YANG Y,et al.Hydrogen production via CaO sorption enhanced anaerobic gasification of sawdust in a bubbling fluidized bed[J].International Journal of Hydrogen Energy,2011,36(8):4820-4829.
[18] YI K B,CHANG H K,PARK J H,et al.Improvement of the cyclic stability of high temperature CO₂,absorbent by the addition of oxygen vacancy possessing material[J].Catalysis Today,2009,146(1/2):241-247.
[19] ACHARYA B,DUTTA A,BASU P.An investigation into steam gasification of biomass for hydrogen enriched gas production in presence of CaO[J].International Journal of Hydrogen Energy,2010,35(4):1582-1589.
[20] WIDYAWATI M,CHURCH T L,FLORIN N H,et al.Hydrogen synthesis from biomass pyrolysis with in situ carbon dioxide capture using calcium oxide[J].International Journal of Hydrogen Energy,2011,36(8):4800-4813.
[21] RADFARNIA H R,ILIUTA M C.Hydrogen production by sorption-enhanced steam methane reforming process using CaO-Zr/Ni bifunctional sorbent-catalyst[J].Chemical Engineering & Processing,2014,86:96-103.
[22] RADFARNIA H R,ILIUTA M C.Development of zirconium-stabilized calcium oxide absorbent for cyclic high-temperature CO₂ capture[J].Industrial & Engineering Chemistry Research,2012,51(31):10390-10398.
[23] OLIVARES-MARIN M,CUERDA-CORREA E M,NIETO-SANCHEZ A,et al.Influence of morphology,porosity and crystal structure of CaCO₃,precursors on the CO₂,capture performance of CaO-derived sorbents[J].Chemical Engineering Journal,2013,217(1):71-81.
[24] KIM J N,CHANG H K,YI K B.Sorption enhanced hydrogen production using one-body CaO-Ca₁₂Al₁₄O₃₃-Ni composite as catalytic absorbent[J].International Journal of Hydrogen Energy,2013,38(14):6072-6078.
[25] 孙荣岳,李英杰,谢辛,等.Cl对钙基吸收剂捕集CO₂性能的影响[J].工程热物理学报,2014,35(1):204-207.SUN R Y,LI Y J,XIE X,et al.Effect of Cl on CO₂ capture capacity of calcium-based sorbent[J].Journal of Engineering Thermophysics,2014,35(1):204-207.
[26] 吴嵘,吴素芳.包硅改性纳米碳酸钙应用于高温CO₂吸附的性能[J].化工学报,2006,57(7):1722-1726.WU Z,WU S F.Performance of nano-CaCO₃ coated with SiO₂ on CO₂ adsorption at high temperature[J].Journal of Chemical Industry and Engineering(China),2006,57(7):1722-1726.
[27] SUN Z,XU C C,CHEN S Y,et al.Improvements of CaO-based sorbents for cyclic CO₂ capture using a wet mixing process[J].Chemical Engineering Journal,2016,286:320-328.
[28] SHAO J,YAN R,CHEN H,et al.Catalytic effect of metal oxides on pyrolysis of sewage sludge[J].Fuel Processing Technology,2010,91(9):1113-1118.
[29] SUN Z,XIANG W,CHEN S.Sorption enhanced coal gasification for hydrogen production using a synthesized CaO-MgO-molecular sieve sorbent[J].International Journal of Hydrogen Energy,2016,41(39):17323-17333.
[30] NIPATTUMMAKUL N,AHMED I I,KERDSUWAN S,et al.Hydrogen and syngas production from sewage sludge via steam gasification[J].International Journal of Hydrogen Energy,2010,35(21):11738-11745.
[31] NIPATTUMMAKUL N,AHMED I I,KERDSUWAN S,et al.High temperature steam gasification of wastewater sludge[J].Applied Energy,2010,87(12):3729-3734.
[32] LUO S,XIAO B,HU Z,et al.Hydrogen-rich gas from catalytic steam gasification of biomass in a fixed bed reactor:Influence of temperature and steam on gasification performance[J].International Journal of Hydrogen Energy,2009,34(3):1260-1264.
[33] YU Q Z,BRAGE C,NORDGREEN T,et al.Effects of Chinese dolomites on tar cracking in gasification of birch[J].Fuel,2009,88(10):1922-1926.
[34] SUN Z,CHEN S Y,MA S W,et al.Simulation of the calcium looping process(CLP) for hydrogen,carbon monoxide and acetylene poly-generation with CO₂,capture and COS reduction[J].Applied Energy,2016,169:642-651.

基于3A分子筛和TiO₂载体的钙基碳载体对污泥气化的影响

Effects of 3A molecular sieve and TiO₂supported CaO on the gasification of sewage sludge

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