Effect of gas composition in Chemical-Looping Combustion with copper-based oxygen carriers: Fate of light hydrocarbons

被引：42

作者：

Gayan, P. ^{[1
]}

Forero, C. R. ^{[2
]}

de Diego, L. F. ^{[1
]}

Abad, A. ^{[1
]}

Garcia-Labiano, F. ^{[1
]}

Adanez, J. ^{[1
]}

机构：

[1] CSIC, Inst Carboquim, Environm & Energy Dept, Zaragoza 50018, Spain

[2] Univ Valle, Engn Sch Nat & Environm Resources EIDENAR, Cali 25360, Colombia

来源：

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL | 2010年 / 4卷 / 01期

关键词：

CO2; capture; Chemical-Looping Combustion; Copper; Hydrocarbons; CO2; SEPARATION; SOLID FUELS; SYSTEM; OXIDATION; SYNGAS; OXIDE;

D O I：

10.1016/j.ijggc.2009.09.020

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Chemical-Looping Combustion (CLC) is an emerging technology for CO2 capture because separation of this gas from the other flue gas components is inherent to the process and thus no energy is expended for the separation. Natural or refinery gas can be used as gaseous fuels and they may contain different amounts of light hydrocarbons. This paper presents the combustion results obtained with a Cu-based oxygen carrier using mixtures of CH4 and light hydrocarbons (LHC) (C2H6 and C3H8) as fuel. The effect on combustion efficiency of the fuel reactor temperature, solid circulation flow rate and gas composition was studied in a continuous CLC plant (500 W-th). Full combustions were reached at 1073 and 1153 K working at oxygen to fuel ratios, phi higher than 1.5 and 1.2 respectively. Unburnt hydrocarbons were never detected at any experimental conditions at the fuel reactor outlet. Carbon formation can be avoided working at 1153 K or at phi values higher than 1.5 at 1073 K. After 30 h of continuous operation, the oxygen carrier exhibited an adequate behavior regarding attrition and agglomeration. it can be concluded that no special measures should be taken in a CLC process with Cu-based OC with respect to the presence of LHC in the fuel gas. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：13 / 22

页数：10

共 41 条

[1] The use of iron oxide as oxygen carrier in a chemical-looping reactor [J].

Abad, A. ;

Mattisson, T. ;

Lyngfelt, A. ;

Johansson, M. .

FUEL, 2007, 86 (7-8) :1021-1035

[2] Chemical-looping combustion in a 300 W continuously operating reactor system using a manganese-based oxygen carrier [J].

Abad, A ;

Mattisson, T ;

Lyngfelt, A ;

Rydén, M .

FUEL, 2006, 85 (09) :1174-1185

[3] Mapping of the range of operational conditions for Cu-, Fe-, and Ni-based oxygen carriers in chemical-looping combustion [J].

Abad, Alberto ;

Adanez, Juan ;

Garcia-Labiano, Francisco ;

de Diego, Luis F. ;

Gayan, Pilar ;

Celaya, Javier .

CHEMICAL ENGINEERING SCIENCE, 2007, 62 (1-2) :533-549

[4] Selection of oxygen carriers for chemical-looping combustion [J].

Adánez, J ;

de Diego, LF ;

García-Labiano, F ;

Gayán, P ;

Abad, A ;

Palacios, JM .

ENERGY & FUELS, 2004, 18 (02) :371-377

[5] Chemical looping combustion in a 10 kWth prototype using a CuO/Al2O3 oxygen carrier:: Effect of operating conditions on methane combustion [J].

Adanez, Juan ;

Gayan, Pilar ;

Celaya, Javier ;

de Diego, Luis F. ;

Garcia-Labiano, Francisco ;

Abad, Alberto .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (17) :6075-6080

[6] Effect of Fuel Gas Composition in Chemical-Looping Combustion with Ni-Based Oxygen Carriers. 2. Fate of Light Hydrocarbons [J].

Adanez, Juan ;

Dueso, Cristina ;

de Diego, Luis F. ;

Garcia-Labiano, Francisco ;

Gayan, Pilar ;

Abad, Alberto .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (05) :2509-2518

[7] Methane Combustion in a 500 Wth Chemical-Looping Combustion System Using an Impregnated Ni-Based Oxygen Carrier [J].

Adanez, Juan ;

Dueso, Cristina ;

de Diego, Luis F. ;

Garcia-Labiano, Francisco ;

Gayan, Pilar ;

Abad, Alberto .

ENERGY & FUELS, 2009, 23 (1-2) :130-142

[8] Exergy analysis of chemical-looping combustion systems [J].

Anheden, M ;

Svedberg, G .

ENERGY CONVERSION AND MANAGEMENT, 1998, 39 (16-18) :1967-1980

[9]

[Anonymous], 2008, HSC CHEM 6 1 CHEM RE

[10] Investigation of chemical looping combustion by solid fuels. 1. Process analysis [J].

Cao, Yan ;

Pan, Wei-Ping .

ENERGY & FUELS, 2006, 20 (05) :1836-1844

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