A simple and cost-effective extractive desulfurization …

Thus, the development of non-HDS process, such as adsorption, extraction, oxidation and biodesulfurization, has become a hot topic. 3–10 Among those selective desulfurization techniques, extractive desulfurization (EDS) seems to be the most attractive method because of its moderate and convenient operation conditions. 11–15 However, the ...

Simple biogas desulfurization by microaeration

2017-1-5 · The lack of full-scale experience with microaeration in wastewater treatment plants has been overcome by evaluating the results of seven microaerobic digesters in central Europe. The desulfurization efficiency has been more than 90% in most of the cases. Moreover, microaeration improved the degradability of COD and volatile suspended solids.

Experiment and Mechanism Analysis of Desulfurization …

2020-11-16 · To reduce the cost of the current commercial desulfurization and eliminate effluents, the MgO-based desulfurizer fixed bed desulfurization tests were carried out in a dry environment. By means of X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy, the absorption effects of the MgO-based desulfurizer on SO2 were thoroughly …

Desulfurization of gasoline by a new method of …

Schucker et al. [19][20] have invented a new method of electrochemical oxidation for removing sulfides from naphtha and the products of sulfide-oxide can be extracted easily by distillation.

METHODS FOR DESULFURIZATION OF CRUDE OIL

2016-4-30 · 2.3. Hydro-desulfurization (HDS) In petroleum sector the most common method used for the removal of sulfur content in crude oil is hydrodesulfurization.HDS is execute when oil feed stock is with hydrogen in the presence of standard HDS catalyst.

Simple biogas desulfurization by microaeration – Full scale …

2017-8-1 · Microaeration, i.e. dosing of small amount of air, is suitable and cost effective biochemical method of sulfide oxidation to elemental sulfur. It has been widely used in biogas plants, but its application in anaerobic reactors for wastewater treatment has been rarely studied or tested. The lack of full-scale experience with microaeration in ...

Simple biogas desulfurization by microaeration – Full scale …

A recent report documented the effectiveness of micro-aeration for biogas desulfurization in full scale digesters at seven wastewater treatment facilities [6]. Desulfurization efficiencies ranged ...

P-B Desulfurization: An Enabling Method for Protein …

Cysteine-mediated native chemical ligation is a powerful method for protein chemical synthesis. Herein, we report an unprecedentedly mild system (TCEP/NaBH 4 or TCEP/LiBEt 3 H; TCEP=tris(2-carboxyethyl)phosphine) for chemoselective peptide desulfurization to achieve effective protein synthesis via the native chemical ligation-desulfurization approach. . This …

Simple biogas desulfurization by microaeration – Full scale …

The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C.

CATALYST FOR DESULFURIZATION, METHOD OF ...

2018-8-30 · CATALYST FOR DESULFURIZATION, METHOD OF PREPARING THE SAME, AND DESULFURIZATION METHOD USING THE SAME US16117619 2018-08-30 () US20190085254A1 () 2019-03-21

An evaluation of desulfurization technologies …

The research efforts for developing conventional hydrodesulfurization and alternative desulfurization methods such as selective adsorption, biodesulfurization, oxidation / extraction (oxidative desulfurization), etc. for …

Dry Desulfurization and Denitrification System

2022-2-9 · Our dry desulfurization and denitrification system can independently remove sulfur oxides (SOx), nitrogen oxides (NOx), dust and dioxin all at once with activated coke. The technology is firmly established today, with 10 …

What are the main methods of desulfurization and …

2021-4-24 · A sulfurization technology. At present, there are dozens of technical process types for flue gas desulfurization and denitrification. The special pump for boiler dust removal, desulfurization and denitration is divided into three types: wet, semi-dry, and dry according to whether water is added to the desulfurization and denitration process and the dry and wet form …

Simple biogas desulfurization by microaeration

Hydrogen sulfide in biogas is common problem during anaerobic treatment of wastewater with high sulfate concentration (breweries, distilleries, etc.) and needs to be removed before biogas utilization. Physico-chemical desulfurization methods are energetically demanding and expensive compare to bioch …

Desulfurization – XINTAI

Desulfurization technology. At present, there are three types of desulfurization methods: dry, semi dry and wet. Dry desulfurization, semi dry and wet desulfurization.Wet desulfurization efficiency of up to 98%. The characteristics of wet flue gas desulfurization technology is the end of the whole desulfurizationsystem in flue desulfurization ...

Development of a simple desulfurization procedure for the …

The developed method is simple, fast, no derivatization involved, and successfully applied to the speciation of butyltins in Certified Reference Material of …

Method for desulfurization of methanol

2018-7-10 · 1 Abstract. A method for removing sulfur-containing compounds from methanol, said method comprising the step of subjecting methanol comprising sulfur-containing compounds to centrifugal countercurrent chromatography (CCCC) to remove sulfur-containing compounds, and the use of centrifugal countercurrent chromatography (CCCC) for removing sulfur ...

An evaluation of desulfurization technologies …

Sulfur compounds represent one of the most common impurities present in the crude oil. Sulfur in liquid fuel oil leads directly to the emission of SO 2 and sulfate particulate matter (SPM) that endangers public health and community …

(PDF) Development of a simple desulfurization procedure …

Development of a simple desulfurization procedure for the determination of butyltins in complex sediment samples using gas chromatography–pulsed flame photometric detection

The desulfurization of coal tar pitch with potassium …

A method for oxidative desulfurization of the coal tar pitch has been developed. The method is easy operation with low energy consumption under room temperature and pressure. The thiophene sulfur, thiol thioether sulfur and sulfoxide sulfur in coal tar pitch are removed by 72%, 65% and 58%, respectively.

FLUE GAS DESULFURIZATION: COST AND FUNCTIONAL …

2019-4-11 · Flue Gas Desulfurization is a method of controlling the emission of sulfurs, which causes the acid rain. The following study is based on 26 utilities which burn coal, have a generating capacity of at least 50 Megawatts (MW) and whose Flue Gas Desulfurization devices have been operating for at least 5 years. An analysis is made of the capital and

Desulfurization and new method of desulfurisation

The method according to 14, in which the said desulfurization stage (a) is carried out at a temperature from about 37,8°to 537,8°C, a pressure of from about 103 kPa to 10,33 MPa (about 15 to 1500 abs. pounds per square inch) and over a period of time sufficient to carry out the removal of sulfur from the mentioned thread; or when the ...

Desulfurization method for petroleum containing sulfur

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

Simple biogas desulfurization by microaeration

Hydrogen sulfide in biogas is common problem during anaerobic treatment of wastewater with high sulfate concentration (breweries, distilleries, etc.) and needs to be removed before biogas utilization. Physico-chemical desulfurization methods are energetically demanding and expensive compare to biochemical methods. Microaeration, i.e. dosing of small amount of air, is suitable …

4 Desulfurization Methods for Climate Change Mitigation

2020-1-9 · The most common desulfurization technologies used today include the following: 1. Hydrodesulfurization (HDS) Hydrodesulfurization, which uses chemical catalysts at a high temperature and pressure to remove sulfur is the most commonly used method in the petroleum industry to reduce sulfur content of crude oil. 2. Adsorptive desulfurization.

Desulfurization of Model Oil by Selective Adsorption over …

2017-6-12 · Considering the high thermal stability of BN, a simple heat treatment method has been applied (the sample was heated at 700 °C for 1 h in air) for the regeneration of porous BN microfibers (1100 ...

P−B Desulfurization: An Enabling Method for Protein …

2017-10-2 · Cysteine-mediated native chemical ligation is a powerful method for protein chemical synthesis. Herein, we report an unprecedentedly mild system (TCEP/NaBH 4 or TCEP/LiBEt 3 H; TCEP=tris(2-carboxyethyl)phosphine) for chemoselective peptide desulfurization to achieve effective protein synthesis via the native chemical ligation–desulfurization approach.

Processes | Free Full-Text | Method of Desulfurization …

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 desulfurization process …

A study of the desulfurization selectivity of a reductive and ...

2020-6-26 · The desulfurization performance of this desulfurization method for different simulated fuels was detected. The extraction and reduction mechanisms were also determined. Results

Gas fine desulfurization method

2020-11-13 · Gas fine desulfurization method. Cite. Download. Patent: CN-112430480-A: Inventor: XU CHUANDONG. Assignee: SHANGHAI ZHUYUAN MECHANICAL TECH CO LTD. Date: Priority . 2020/11/13. This web page summarizes information in PubChem about patent CN-112430480-A. This includes chemicals mentioned, as reported by PubChem contributors, as …

Applied Sciences | Free Full-Text | Review of Coal-Fired

2019-1-26 · This paper briefly introduces various methods of coal desulfurization (physical desulphurization, chemical desulfurization, biological desulfurization, etc.) and analyzes some problems existing in each method. The principle and research process of friction electrostatic separation technology and high gradient magnetic separation technology in pre-combustion …

Iron based desulfurization catalyst

2022-7-1 · Iron based desulfurization catalyst - Technology realization elements. In order to overcome the defects of the prior art, the invention provides a preparation method and application of oxidation desulfurization catalyst with high catalytic activity, high stability, multiple recycling and easy recovery. The object of the invention can be ...

Summary of desulfurization and denitrification technology …

2017-7-17 · categories of news

Desulfurization from Gas Oil

2018-7-24 · Desulfurization from Gas Oil: sulfur removal of gas oil to 10 ppm Author: Vincenzo Piemonte - Associate Professor - University "Campus Bio-Medico" of ... aren''t easy removed by HDS process. BDS can be used instead of, or complementary with, HDS4. Adsorptive Desulfurization (ADS) ... oxidative‐desulfurization‐ODS‐method.pdf ...

Simple biogas desulfurization by microaeration – Full scale …

2017-8-1 · Simple, highly efficient and stable method for H 2 S removal from the biogas. ... Physico-chemical desulfurization methods are energetically demanding and expensive compare to biochemical methods. Microaeration, i.e. dosing of small amount of air, is suitable and cost effective biochemical method of sulfide oxidation to elemental sulfur. It has ...

Desulfurization

The zinc ferrite–silicon dioxide composite powder provides reactive, durable, and regenerable reactant for dry sulfur removal sorbent. The next step of preparation of dry desulfurization sorbent is embedding composite powder into the supporting material and shaping the honeycomb structure. Table 4.1.

Coal Desulfurization via Different Methods

2010-6-24 · However, physical and biological methods are ineffective and time consuming and they can be applied only on the bench scale. Most of the effective coal desulfurization techniques are based on chemical methods. Main desulfurization methods are chemical desulfurization, leaching, extraction, flotation, oxydesulfurization and biodesulfurization.

Flue gas desulfurization method and apparatus (Patent)

1998-8-18 · @article{osti_871782, title = {Flue gas desulfurization method and apparatus}, author = {Madden, Deborah A and Farthing, George A}, abstractNote = {A combined furnace limestone injection and dry scrubber flue gas desulfurization (FGD) system collects solids from the flue gas stream in first particulate collection device located downstream of an outlet of a convection …

Desulfurization

The simplest method for desulfurization is to add oxygen or air directly into the digestion chamber. With this method, H 2 S level also be reduced by up to 95% to levels less than 50 ppm. However, when adding air into the biogas, safety measures need to be taken into account to avoid the overdosing of air in case of a pump failure.

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