Modification of Activated Carbon From Sewage Sludge to Improve Desulfurization With γ-Al2O3

2010 ◽  
Vol 96 ◽  
pp. 111-116
Author(s):  
Xiao Dan Fan ◽  
Xiang Kai Zhang
Keyword(s):  
Activated Carbon ◽  
Sewage Sludge ◽  
Flue Gas ◽  
Active Sites ◽  
Sol Gel ◽  
Porous Membranes ◽  
Surface Functional Groups ◽  
Gaseous Oxygen ◽  
Adsorption Performance ◽  
So2 Adsorption

The aim is to modify the activated carbon from sewage sludge with γ-Al2O3 by sol-gel, investigate its performances on the SO2 adsorption and the desulfurization mechanisms in the presence of gaseous oxygen. The modification of the activated carbon from sewage sludge was carried out by adding γ-Al2O3 to improve the SO2 adsorption in a simulated flue gas. The results indicated that γ-Al2O3 porous membranes addition was very effective in promoting the BET area and pore volumes of the activated carbon from sewage sludge. γ-Al2O3 porous membranes in the presence of gaseous oxygen had much effect on the adsorption performance and benefited the SO2 adsorption capacity. The physically adsorbed adsorption took place first. And the following reactions should be occurring on the active sites (*) because of the specific pore construction, BET area and surface functional groups on γ-Al2O3/activated carbon from sewage sludge: (1)SO2 + *→SO2* , (2) O2 + *→O2* , (3)SO2* + O2* → SO3* , (4) 3SO3* + Al2O3 → Al2(SO4)3.

Simultaneous Removal of SO2 and NO with Activated Carbon from Sewage Sludge Modified by Chitosan

2012 ◽  
Vol 253-255 ◽  
pp. 960-964 ◽  
Author(s):  
Xiao Dan Fan ◽  
Xiang Kai Zhang
Keyword(s):  
Activated Carbon ◽  
Sewage Sludge ◽  
Active Sites ◽  
Operating Conditions ◽  
Competitive Sorption ◽  
Simultaneous Removal ◽  
No Removal ◽  
Adsorption Capacities ◽  
So2 Adsorption ◽  
Removal Of So2

The simultaneous removal of SO2 and NO was investigated with the activated carbon from sewage sludge (referred as ACS) modified by chitosan (referred as CS).The effects of CS loading and operating conditions on the simultaneous removal of SO2 and NO were analyzed. The results indicate that compared with the ACS, impregnating CS results in significant increase in SO2 or NO removal. Relative humidity enhances SO2 adsorption capacities, but not for NO. The SO2 adsorption capacities of the CS / ACS show no obvious decrease at small amount of NO in the feed. However, higher amounts of NO reduce the SO2 adsorption capacities. The opposite phenomenon appears for NO when a small amount of SO2. So a competitive sorption consists between NO and SO2. Simultaneous adsorptions for NO and SO2 is due to more active sites from CS.

Activated carbon preparation from pyrolysis char of sewage sludge and its adsorption performance for organic compounds in sewage

Fuel ◽  
2020 ◽  
Vol 266 ◽  
pp. 117053 ◽  
Author(s):  
Yu-huan Li ◽  
Feng-min Chang ◽  
Bo Huang ◽  
Ya-peng Song ◽  
Hong-yu Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Sewage Sludge ◽  
Organic Compounds ◽  
Adsorption Performance

Using the Novel Method of Nonthermal Plasma To Add Cl Active Sites on Activated Carbon for Removal of Mercury from Flue Gas

2016 ◽  
Vol 50 (21) ◽  
pp. 11837-11843 ◽  
Author(s):  
Bi Zhang ◽  
Xiaobo Zeng ◽  
Ping Xu ◽  
Juan Chen ◽  
Yang Xu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Flue Gas ◽  
Active Sites ◽  
Nonthermal Plasma ◽  
The Novel ◽  
Novel Method

scholarly journals Characteristic of SO2 adsorption on activated carbon for simulated flue gas and its thermal regeneration.

1985 ◽  
Vol 11 (4) ◽  
pp. 388-393 ◽  
Author(s):  
Takeo Komuro ◽  
Kenichi Gomi ◽  
Norio Arashi ◽  
Yukio Hishinuma ◽  
Osamu Kanda ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Flue Gas ◽  
Thermal Regeneration ◽  
So2 Adsorption

Study on the Removal of Mercury in the Simulated Flue Gas by Biomass Activated Carbon

2013 ◽  
Vol 864-867 ◽  
pp. 1519-1524 ◽  
Author(s):  
Li Li Zhao ◽  
Qian Yan Liu ◽  
Jiang Wu ◽  
Chong Zhang ◽  
Yu Wu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Flue Gas ◽  
Fixed Bed ◽  
The Self ◽  
Experimental Results ◽  
Activator Concentration ◽  
Activation Temperature ◽  
Adsorption Performance ◽  
Fixed Bed System

This paper mainly studied the removal of Hg by biomass activated carbon in the simulated flue gas. Biomass activated carbon of different materials were made through the control of activator concentration, activation temperature in the self-developed biomass preparation system. In the fixed bed system, the flue gas Hg removal efficiency of activated carbon samples were evaluated. The experimental results showed that the adsorption performance of biomass activated carbon was not proportional with the change of the activator concentration and activation temperature, the overall trend was firstly increased and then decreased.

New Approach to the Emission of Flue Gases Caused by Sludge Incineration in the Netherlands

1992 ◽  
Vol 25 (4-5) ◽  
pp. 307-314 ◽  
Author(s):  
A. W. van der Vlies ◽  
J. H. B. te Marvelde
Keyword(s):  
Sewage Sludge ◽  
The Netherlands ◽  
Flue Gas ◽  
Flue Gases ◽  
Gas Purification ◽  
Incineration Plant ◽  
New Approach ◽  
Sludge Incineration ◽  
Limited Degree ◽  
The Town

Recycling of sewage sludge will soon no longer be possible in The Netherlands, or will be possible only to a very limited degree. For that reason, part of the sewage sludge will have to be incinerated. This will happen particularly in those areas where tipping space is very limited. A sludge incineration plant is planned to be built in the town of Dordrecht, with a capacity of 45,000 tonnes dry solids per year. The plant will be subject to the very strict flue gas emission requirements of the Dutch Guideline on Incineration. The Guideline demands a sophisticated flue gas purification procedure.

Constructing efficient hcp-Co active sites for Fischer-Tropsch reaction on an activated carbon supported cobalt catalyst via multistep activation processes

Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120244
Author(s):  
Hong Du ◽  
Miao Jiang ◽  
Hejun Zhu ◽  
Chuande Huang ◽  
Ziang Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Active Sites ◽  
Cobalt Catalyst ◽  
Fischer Tropsch
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