Syngas from palm oil mill effluent (POME) steam reforming over lanthanum cobaltite: Effects of net-basicity

Yoke Wang Cheng; Chi Cheng Chong; Soon Poh Lee; Jun Wei Lim; Ta Yeong Wu; Chin Kui Cheng

doi:10.1016/j.renene.2019.10.040

Syngas from palm oil mill effluent (POME) steam reforming over lanthanum cobaltite: Effects of net-basicity

Yoke Wang Cheng, Chi Cheng Chong, Soon Poh Lee, Jun Wei Lim, Ta Yeong Wu, Chin Kui Cheng

Chemical and Petroleum Engineering

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Steam reforming (SR) of palm oil mill effluent (POME) over net-basic LaCoO₃ was optimised for syngas production (F_Syngas) and degradation efficacies (X_P) by tuning temperature (T), POME flow rate (V˙_POME), catalyst weight (W_cat), and particle size (d_cat). Net-basicity of LaCoO₃ facilitated the adsorption of Lewis acid CO₂, thereby assisted carbon removal via reverse Boudouard reaction. POME SR over LaCoO₃ was promoted by using (i) higher T (endothermicity), (ii) greater V˙_POME (larger partial pressure at constant weight-hourly-space-velocity and total feed rate), (iii) larger W_cat (longer residence time for POME vapour), and (iv) smaller d_cat (higher surface area to volume ratio). Nevertheless, the catalytic activity of LaCoO₃ declined with (i) severe coking and sintering deactivation (T≥973 K), (ii) carbon-encapsulation (V˙_POME = 0.10 mL/min), (iii) agglomeration (W_cat>0.3 g), and (iv) pore occlusion (d_cat<74 μm). Hence, the optimum conditions of POME SR over LaCoO₃ were T = 873 K, V˙_POME = 0.09 mL/min, W_cat = 0.3 g, and d_cat = 74–105 μm. The optimised process able to produce syngas at a rate of 86.60 μmol/min whilst degrading POME to a less polluted liquid condensate (COD = 435 mg/L and BOD₅ = 62 mg/L).

Original language	British English
Pages (from-to)	349-362
Number of pages	14
Journal	Renewable Energy
Volume	148
DOIs	https://doi.org/10.1016/j.renene.2019.10.040
State	Published - Apr 2020

Keywords

Palm oil mill effluent
Steam reforming
Syngas generation
Wastewater valorisation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.renene.2019.10.040

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@article{1a448c6571824575b10cec1c030c2f45,

title = "Syngas from palm oil mill effluent (POME) steam reforming over lanthanum cobaltite: Effects of net-basicity",

abstract = "Steam reforming (SR) of palm oil mill effluent (POME) over net-basic LaCoO3 was optimised for syngas production (FSyngas) and degradation efficacies (XP) by tuning temperature (T), POME flow rate (V˙POME), catalyst weight (Wcat), and particle size (dcat). Net-basicity of LaCoO3 facilitated the adsorption of Lewis acid CO2, thereby assisted carbon removal via reverse Boudouard reaction. POME SR over LaCoO3 was promoted by using (i) higher T (endothermicity), (ii) greater V˙POME (larger partial pressure at constant weight-hourly-space-velocity and total feed rate), (iii) larger Wcat (longer residence time for POME vapour), and (iv) smaller dcat (higher surface area to volume ratio). Nevertheless, the catalytic activity of LaCoO3 declined with (i) severe coking and sintering deactivation (T≥973 K), (ii) carbon-encapsulation (V˙POME = 0.10 mL/min), (iii) agglomeration (Wcat>0.3 g), and (iv) pore occlusion (dcat<74 μm). Hence, the optimum conditions of POME SR over LaCoO3 were T = 873 K, V˙POME = 0.09 mL/min, Wcat = 0.3 g, and dcat = 74–105 μm. The optimised process able to produce syngas at a rate of 86.60 μmol/min whilst degrading POME to a less polluted liquid condensate (COD = 435 mg/L and BOD5 = 62 mg/L).",

keywords = "Palm oil mill effluent, Steam reforming, Syngas generation, Wastewater valorisation",

author = "Cheng, {Yoke Wang} and Chong, {Chi Cheng} and Lee, {Soon Poh} and Lim, {Jun Wei} and Wu, {Ta Yeong} and Cheng, {Chin Kui}",

note = "Funding Information: Ministry of Education Malaysia subsidised this work via the Fundamental Research Grant Scheme (FRGS) with a grant number of RDU170116 . YWC also grateful to Malaysia Toray Science Foundation for financial allocation through Science & Technology Research Grant (STRG), RDU181501 . Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = apr,

doi = "10.1016/j.renene.2019.10.040",

language = "British English",

volume = "148",

pages = "349--362",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Syngas from palm oil mill effluent (POME) steam reforming over lanthanum cobaltite

T2 - Effects of net-basicity

AU - Cheng, Yoke Wang

AU - Chong, Chi Cheng

AU - Lee, Soon Poh

AU - Lim, Jun Wei

AU - Wu, Ta Yeong

AU - Cheng, Chin Kui

N1 - Funding Information: Ministry of Education Malaysia subsidised this work via the Fundamental Research Grant Scheme (FRGS) with a grant number of RDU170116 . YWC also grateful to Malaysia Toray Science Foundation for financial allocation through Science & Technology Research Grant (STRG), RDU181501 . Publisher Copyright: © 2019 Elsevier Ltd

PY - 2020/4

Y1 - 2020/4

N2 - Steam reforming (SR) of palm oil mill effluent (POME) over net-basic LaCoO3 was optimised for syngas production (FSyngas) and degradation efficacies (XP) by tuning temperature (T), POME flow rate (V˙POME), catalyst weight (Wcat), and particle size (dcat). Net-basicity of LaCoO3 facilitated the adsorption of Lewis acid CO2, thereby assisted carbon removal via reverse Boudouard reaction. POME SR over LaCoO3 was promoted by using (i) higher T (endothermicity), (ii) greater V˙POME (larger partial pressure at constant weight-hourly-space-velocity and total feed rate), (iii) larger Wcat (longer residence time for POME vapour), and (iv) smaller dcat (higher surface area to volume ratio). Nevertheless, the catalytic activity of LaCoO3 declined with (i) severe coking and sintering deactivation (T≥973 K), (ii) carbon-encapsulation (V˙POME = 0.10 mL/min), (iii) agglomeration (Wcat>0.3 g), and (iv) pore occlusion (dcat<74 μm). Hence, the optimum conditions of POME SR over LaCoO3 were T = 873 K, V˙POME = 0.09 mL/min, Wcat = 0.3 g, and dcat = 74–105 μm. The optimised process able to produce syngas at a rate of 86.60 μmol/min whilst degrading POME to a less polluted liquid condensate (COD = 435 mg/L and BOD5 = 62 mg/L).

AB - Steam reforming (SR) of palm oil mill effluent (POME) over net-basic LaCoO3 was optimised for syngas production (FSyngas) and degradation efficacies (XP) by tuning temperature (T), POME flow rate (V˙POME), catalyst weight (Wcat), and particle size (dcat). Net-basicity of LaCoO3 facilitated the adsorption of Lewis acid CO2, thereby assisted carbon removal via reverse Boudouard reaction. POME SR over LaCoO3 was promoted by using (i) higher T (endothermicity), (ii) greater V˙POME (larger partial pressure at constant weight-hourly-space-velocity and total feed rate), (iii) larger Wcat (longer residence time for POME vapour), and (iv) smaller dcat (higher surface area to volume ratio). Nevertheless, the catalytic activity of LaCoO3 declined with (i) severe coking and sintering deactivation (T≥973 K), (ii) carbon-encapsulation (V˙POME = 0.10 mL/min), (iii) agglomeration (Wcat>0.3 g), and (iv) pore occlusion (dcat<74 μm). Hence, the optimum conditions of POME SR over LaCoO3 were T = 873 K, V˙POME = 0.09 mL/min, Wcat = 0.3 g, and dcat = 74–105 μm. The optimised process able to produce syngas at a rate of 86.60 μmol/min whilst degrading POME to a less polluted liquid condensate (COD = 435 mg/L and BOD5 = 62 mg/L).

KW - Palm oil mill effluent

KW - Steam reforming

KW - Syngas generation

KW - Wastewater valorisation

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U2 - 10.1016/j.renene.2019.10.040

DO - 10.1016/j.renene.2019.10.040

M3 - Article

AN - SCOPUS:85074469269

SN - 0960-1481

VL - 148

SP - 349

EP - 362

JO - Renewable Energy

JF - Renewable Energy

ER -

Syngas from palm oil mill effluent (POME) steam reforming over lanthanum cobaltite: Effects of net-basicity

Abstract

Keywords

UN SDGs

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