Opta is the world's leading supplier of magnesium reagents, calcium-carbide, and lime-based carrier reagents for use in the iron desulfurization process. We offer injectable ironmaking desulfurizing products as well as injection and custom …

The desulfurization reaction is mainly in the homogeneous phase, and the proportion of magnesium bubble desulfurization could be ignored when the temperature is higher than 1523K. View Show abstract

Magnesium hydroxide, reclaimed from the flue gas desulfurization system (FGD) at the Zimmer Power Plant, Cincinnati, Ohio, is a weak base, in the form of either a slurry or powder.

Sulfite and heavy metals are crucial pollutants in the slurry produced by flue gas desulfurization. In this study, a novel cobalt-based activated carbon fiber (Co-ACFs) catalyst-adsorbent was ...

Numerous mitigation techniques have been incorporated to capture or remove SO2 with flue gas desulfurization (FGD) being the most common method.

Magnesium reagents used in desulfurization are cost- effective, environmentally friendly and recyclable, and deliver low slag generation, low iron losses in the slag, and achievable final …

This paper presents a novel magnesium-based wet flue gas desulfurization (FGD) process in which sodium thiosulfate is used to inhibit the oxidation of desulfurization byproduct.

magnesium in the desulfurization reaction [1–3]. The actual utilization efficiency of magnesium in a traditional magnesium particulate injection process is less than 40%. The hot metal desulfurization process can be mainly categorized into three kinds: desulfurization with single granular magnesium injection, desulfurization with mag-

The Kinetics of Molten Iron Desulfurization Using Magnesium Vapor G. A. IRONS AND R. I. L. GUTHRIE Magnesium vapor was injected into 60 kg heats of carbon-saturated iron at 1523 K. ... experimental equipment and techniques are given later. 2.0 THEORY In the model used previously by the authors, mag- nesium dissolution into pure iron was ...

Adsorptive desulfurization involves the removal of organic sulfur compounds from petroleum fractions by physicochemical adsorption processes. This is a low temperature and pressure technique and does not need costly hydrogen. The efficiency of adsorptive desulfurization depends mostly on the adsorbent's textural properties.

With the increasingly prominent global energy and environmental problems, more and more enterprises have been required to desulfurize the exhausted gases. Different enterprises have different demands for the desulfurization process, thus the choice of desulfurization process methods has become a focus of attention. Since the evaluation of the …

Typical Magnesium/Lime Desulfurization Process. Lime and magnesium will be pneumatically conveyed to the storage silo by the operator from the truck unloading station. Silo level is established by an ultrasonic controller and a …

DOI: 10.1016/J.CATTOD.2015.03.046 Corpus ID: 92354626; Experimental investigation of MgSO3 oxidation process by catalysis in the magnesium desulfurization @article{Zhu2015ExperimentalIO, title={Experimental investigation of MgSO3 oxidation process by catalysis in the magnesium desulfurization}, author={Tong Zhu and Yong-liang Ma and …

The magnesium oxide desulfurization by-products were stored in a feed bin after pulverization. A metering screw conveyor was used to send the by-products to a Venturi …

Magnesium oxide desulfurization technology is a desulfurization process with a maturity second only to calcium method. It involves the reaction of magnesium's alkaline oxide with water to form hydroxide, which then undergoes acid-base neutralization reaction with sulfuric acid solution formed by dissolving sulfur dioxide in water. Magnesium oxide reacts to produce magnesium …

The kinetics of sulfite oxidation in the magnesium-based wet flue gas desulfurization (FGD) process were investigated in a stirred bubbling reactor by varying the concentrations of MgSO3 and MgSO4, pH, air flow and temperature. The reaction was found to be 0.88 order with respect to magnesium sulfite and the oxidation could reach the maximum …

A large volume of highly concentrated magnesium salt solution is produced during magnesium flue gas desulfurization. Existing method of concentration recovery is relatively inefficient and uneconomical. To address this problem, a hydrothermal crystallization method was proposed to recover the by-products after oxidation.

In order to improve the quality of equipment and services; we support the customization of conveyor belts and rotary screens. In addition, the feeding hopper is enlarged and the frame of …

So the desulfurization price is very high when using magnesium as a desulfurizer in steelmaking process. For example, in North America, the price of magnesium for desulfurization is average 1.5 dollars per pound, magnesium mass for desulfurization is 300–500 g per 1 ton, and the price is 1.0–1.5 dollars, equivalent to 8.0–12.5 RMB. 14)

In magnesium-based seawater exhaust gas clean system, the desulfurization by-product, magnesium sulfite (MgSO3), has a negative impact on the ecological environment, which needs to be treated to ...

Summary Report i Sulfur Oxides Control Technology Series: Flue Gas Desulfurization •. i Magnesium; Oxide Process April 1981 This report was developed by the Industrial Environmental Research Laboratory Research Triangle Park NC 27711 ... Regeneration Two important design considerations for regeneration processing equipment are the physical ...

NEW MAGNESIUM – ENHANCED LIME FLUE GAS DESULFURIZATION PROCESS Benson Carmeuse North America Pittsburgh, PA ... REGENERATION: OVERALL: SO ABSORBED BY MgSO 2 3 SO 2 Mg(HSO ) 32

The magnesium oxide desulfurization by-products were stored in a feed bin after pulverization. ... the minimum feed rate of 89.6 kg/h is feasible for an industry with the same size of the industrial demonstration equipment in this article. Effect of furnace ... A study on magnesia FGD regeneration technology. Nonferrous Met. Eng. Res. 32, 37 ...

@article{osti_7322160, title = {Evaluation of regenerable flue gas desulfurization processes. Volume II. Final report. [Hydrogen-rich reducing gases]}, author = {Aul, Jr, E F and Delleney, R D and Brown, G D and Page, G C and Stuebner, D O}, abstractNote = {Detailed process descriptions and technical evaluations are given for the following twelve flue-gas …

Without the limitations of large equipment, Mg-based WFGD is very practical for small- to medium-scale industrial coal-fired boilers and has lower long-term maintenance costs compared to alternatives. ... Their study results confirmed that the concentration of Mg 2+ could reach 0.1–15 g·L −1 after single desulfurization. The magnesium ...

The invention discloses a process applied to a magnesia slurry method desulfurization system for removing SO2 in coal flue gas and the device thereof. The system mainly comprises a flue gas system, a slurry preparation system, a desulfurization system, an exhaustion system, etc. The main equipment of the desulfurization system is a spraying tower; the prepared MgO serum …

4 Shen et al. have studied the oxidation kinetics of sulfites in the process of wet flue gas desulfurization by magnesium oxide, the study showed that the MgO-based wet flue gas desulfurization ...

Using the caustic soda (NaOH) solution or calcium oxide (CaO) pulp as the desulfurizers for absorbing the SO 2 in the flue gas is the common approaches for metallurgy plants; however, the high ...

The regeneration of by-products of magnesium oxide desulfurization technology has certain economic benefits [133]. H. Chen et al. used a thermogravimetric analysis (TGA) to study the thermal decomposition and decomposition kinetics of the magnesium-based desulfurization by-product MgSO 3 ·6H 2 O. Magnesium oxide and sulfur dioxide were ...

equipment Contaminant project Application condition Limiting value(mg/m3) Key area limit(mg/m3) Pollutant discharge monitoring location Coal-fired boiler SO 2 ... In the magnesium desulfurization method, MgO reacts with water to produce Mg(OH) 2, and Mg(OH) 2 neutralizes with SO 2 to produce MgSO 3, which is then oxidized by O 2