K-capture by Al-Si based Additives in an Entrained Flow Reactor

Guoliang Wang; Peter Arendt Jensen; Hao Wu; Flemming Jappe Frandsen; Bo Sander; Peter Glarborg

K-capture by Al-Si based Additives in an Entrained Flow Reactor

Guoliang Wang
, Peter Arendt Jensen
, Hao Wu
, Flemming Jappe Frandsen
, Bo Sander
, Peter Glarborg

Ørsted A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

A water slurry, consisting of KCl and Al-Si based additives (kaolin and coal fly ash) was fed into an entrained flow reactor (EFR) to study the K-capturing reaction of the additives at suspension-fired conditions. Solid products collected from the reactor were analysed with respect to total and water-soluble K content to quantify the extent of the K-capturing reaction. The results showed that under suspension-fired conditions (1100 °C-1450 °C), kaolin and coal fly ash can effectively capture gaseous KCl. When increasing the mass ratio of KCl to Al-Si additives in the reactants, the conversion of KCl to K-aluminosilicate decreased. When reaction temperature increased from 1100 °C to 1450 °C, the conversion of KCl does not change significantly, which differs from the trend observed in fixed-bed reactor.

Original language	English
Title of host publication	Impacts of Fuel Quality on Power Production
Number of pages	7
Publication date	2016
Publication status	Published - 2016
Event	26th International Conference on Impacts of Fuel Quality on Power Production - Prague, Czech Republic Duration: 19 Sept 2016 → 23 Sept 2016 Conference number: 26

Conference

Conference	26th International Conference on Impacts of Fuel Quality on Power Production
Number	26
Country/Territory	Czech Republic
City	Prague
Period	19/09/2016 → 23/09/2016

Keywords

K-capture
Biomass combustion
Kaolin
Coal ash

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@inproceedings{242a36d2ef814f3da2b2e632fb894295,

title = "K-capture by Al-Si based Additives in an Entrained Flow Reactor",

abstract = "A water slurry, consisting of KCl and Al-Si based additives (kaolin and coal fly ash) was fed into an entrained flow reactor (EFR) to study the K-capturing reaction of the additives at suspension-fired conditions. Solid products collected from the reactor were analysed with respect to total and water-soluble K content to quantify the extent of the K-capturing reaction. The results showed that under suspension-fired conditions (1100 °C-1450 °C), kaolin and coal fly ash can effectively capture gaseous KCl. When increasing the mass ratio of KCl to Al-Si additives in the reactants, the conversion of KCl to K-aluminosilicate decreased. When reaction temperature increased from 1100 °C to 1450 °C, the conversion of KCl does not change significantly, which differs from the trend observed in fixed-bed reactor.",

keywords = "K-capture, Biomass combustion, Kaolin, Coal ash",

author = "Guoliang Wang and Jensen, \{Peter Arendt\} and Hao Wu and \{Jappe Frandsen\}, Flemming and Bo Sander and Peter Glarborg",

year = "2016",

language = "English",

booktitle = "Impacts of Fuel Quality on Power Production",

note = "26th International Conference on Impacts of Fuel Quality on Power Production ; Conference date: 19-09-2016 Through 23-09-2016",

}

TY - GEN

T1 - K-capture by Al-Si based Additives in an Entrained Flow Reactor

AU - Wang, Guoliang

AU - Jensen, Peter Arendt

AU - Wu, Hao

AU - Jappe Frandsen, Flemming

AU - Sander, Bo

AU - Glarborg, Peter

N1 - Conference code: 26

PY - 2016

Y1 - 2016

N2 - A water slurry, consisting of KCl and Al-Si based additives (kaolin and coal fly ash) was fed into an entrained flow reactor (EFR) to study the K-capturing reaction of the additives at suspension-fired conditions. Solid products collected from the reactor were analysed with respect to total and water-soluble K content to quantify the extent of the K-capturing reaction. The results showed that under suspension-fired conditions (1100 °C-1450 °C), kaolin and coal fly ash can effectively capture gaseous KCl. When increasing the mass ratio of KCl to Al-Si additives in the reactants, the conversion of KCl to K-aluminosilicate decreased. When reaction temperature increased from 1100 °C to 1450 °C, the conversion of KCl does not change significantly, which differs from the trend observed in fixed-bed reactor.

AB - A water slurry, consisting of KCl and Al-Si based additives (kaolin and coal fly ash) was fed into an entrained flow reactor (EFR) to study the K-capturing reaction of the additives at suspension-fired conditions. Solid products collected from the reactor were analysed with respect to total and water-soluble K content to quantify the extent of the K-capturing reaction. The results showed that under suspension-fired conditions (1100 °C-1450 °C), kaolin and coal fly ash can effectively capture gaseous KCl. When increasing the mass ratio of KCl to Al-Si additives in the reactants, the conversion of KCl to K-aluminosilicate decreased. When reaction temperature increased from 1100 °C to 1450 °C, the conversion of KCl does not change significantly, which differs from the trend observed in fixed-bed reactor.

KW - K-capture

KW - Biomass combustion

KW - Kaolin

KW - Coal ash

M3 - Article in proceedings

BT - Impacts of Fuel Quality on Power Production

T2 - 26th International Conference on Impacts of Fuel Quality on Power Production

Y2 - 19 September 2016 through 23 September 2016

ER -

K-capture by Al-Si based Additives in an Entrained Flow Reactor

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Conference

Keywords

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