The study of CO 2 gasification of low rank coal impregnated by K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3

Sangtae Park; Yongtaek Choi; Jungmin Sohn

The study of CO ₂ gasification of low rank coal impregnated by K ₂CO ₃, Mn(NO ₃) ₂, and Ce(NO ₃) ₃

Sangtae Park
, Yongtaek Choi
, Jungmin Sohn^*

^*Corresponding author for this work

Major of Mineral Resources and Energy Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

9 Scopus citations

Abstract

We have investigated the kinetics and catalytic activity of CO ₂-lignite gasification with various metal precursors as catalysts. K ₂CO ₃, Mn(NO ₃) ₂, and Ce(NO ₃) ₃ were used and impregnated on a coal using an evaporator. The gasification experiments were carried out with the low rank coal loaded with 5 wt% catalyst at the temperature range from 700~900 °C and atmospheric pressure with the N ₂-CO ₂ reactant gas mixture. The catalytic effect on the gasification rate of the low rank coal with CO ₂ was determined by the thermogravimetric analyzer. It was observed that the low rank coal reached the complete carbon conversion regardless of the kinds of catalysts at 900 °C from the results of TGA. The catalytic activity was ranked as 5 wt% K ₂CO ₃ > 5 wt% Mn(NO ₃) ₂ > 5 wt% Ce(NO ₃) ₃ > Non-catalyst at 900 °C. The gasification rate increased with increasing the temperature. The activation energy of the catalytic gasification with 5 wt% K ₂CO ₃ was 119.0 kJ/mol, which was the lowest among all catalysts.

Original language	English
Pages (from-to)	312-318
Number of pages	7
Journal	Applied Chemistry for Engineering
Volume	22
Issue number	3
State	Published - 2011.06

UN SDGs

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

SDG 13 Climate Action

Keywords

Char
CO
Gasification
K CO
Lignite
Low rank coal

Quacquarelli Symonds(QS) Subject Topics

Engineering - Chemical
Chemistry

Cite this

@article{0024a5bc038044a4b2bd9c658f89c8a8,

title = "The study of CO 2 gasification of low rank coal impregnated by K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3 ",

abstract = "We have investigated the kinetics and catalytic activity of CO 2-lignite gasification with various metal precursors as catalysts. K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3 were used and impregnated on a coal using an evaporator. The gasification experiments were carried out with the low rank coal loaded with 5 wt\% catalyst at the temperature range from 700\textasciitilde{}900 °C and atmospheric pressure with the N 2-CO 2 reactant gas mixture. The catalytic effect on the gasification rate of the low rank coal with CO 2 was determined by the thermogravimetric analyzer. It was observed that the low rank coal reached the complete carbon conversion regardless of the kinds of catalysts at 900 °C from the results of TGA. The catalytic activity was ranked as 5 wt\% K 2CO 3 > 5 wt\% Mn(NO 3) 2 > 5 wt\% Ce(NO 3) 3 > Non-catalyst at 900 °C. The gasification rate increased with increasing the temperature. The activation energy of the catalytic gasification with 5 wt\% K 2CO 3 was 119.0 kJ/mol, which was the lowest among all catalysts.",

keywords = "Char, CO, Gasification, K CO, Lignite, Low rank coal",

author = "Sangtae Park and Yongtaek Choi and Jungmin Sohn",

year = "2011",

month = jun,

language = "English",

volume = "22",

pages = "312--318",

journal = "Applied Chemistry for Engineering",

issn = "1225-0112",

number = "3",

}

TY - JOUR

T1 - The study of CO 2 gasification of low rank coal impregnated by K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3

AU - Park, Sangtae

AU - Choi, Yongtaek

AU - Sohn, Jungmin

PY - 2011/6

Y1 - 2011/6

N2 - We have investigated the kinetics and catalytic activity of CO 2-lignite gasification with various metal precursors as catalysts. K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3 were used and impregnated on a coal using an evaporator. The gasification experiments were carried out with the low rank coal loaded with 5 wt% catalyst at the temperature range from 700~900 °C and atmospheric pressure with the N 2-CO 2 reactant gas mixture. The catalytic effect on the gasification rate of the low rank coal with CO 2 was determined by the thermogravimetric analyzer. It was observed that the low rank coal reached the complete carbon conversion regardless of the kinds of catalysts at 900 °C from the results of TGA. The catalytic activity was ranked as 5 wt% K 2CO 3 > 5 wt% Mn(NO 3) 2 > 5 wt% Ce(NO 3) 3 > Non-catalyst at 900 °C. The gasification rate increased with increasing the temperature. The activation energy of the catalytic gasification with 5 wt% K 2CO 3 was 119.0 kJ/mol, which was the lowest among all catalysts.

AB - We have investigated the kinetics and catalytic activity of CO 2-lignite gasification with various metal precursors as catalysts. K 2CO 3, Mn(NO 3) 2, and Ce(NO 3) 3 were used and impregnated on a coal using an evaporator. The gasification experiments were carried out with the low rank coal loaded with 5 wt% catalyst at the temperature range from 700~900 °C and atmospheric pressure with the N 2-CO 2 reactant gas mixture. The catalytic effect on the gasification rate of the low rank coal with CO 2 was determined by the thermogravimetric analyzer. It was observed that the low rank coal reached the complete carbon conversion regardless of the kinds of catalysts at 900 °C from the results of TGA. The catalytic activity was ranked as 5 wt% K 2CO 3 > 5 wt% Mn(NO 3) 2 > 5 wt% Ce(NO 3) 3 > Non-catalyst at 900 °C. The gasification rate increased with increasing the temperature. The activation energy of the catalytic gasification with 5 wt% K 2CO 3 was 119.0 kJ/mol, which was the lowest among all catalysts.

KW - Char

KW - CO

KW - Gasification

KW - K CO

KW - Lignite

KW - Low rank coal

UR - https://www.scopus.com/pages/publications/84867725836

M3 - Journal article

AN - SCOPUS:84867725836

SN - 1225-0112

VL - 22

SP - 312

EP - 318

JO - Applied Chemistry for Engineering

JF - Applied Chemistry for Engineering

IS - 3

ER -