Products
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Methane extraction technology - biogas
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Desulfurization technology using the redox wet method
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Unit desalting and demineralization equipment and special resin
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Hydrogen production by coal gasification
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Flue gas denitrification SCR、SNC
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MPS decarbonization technology
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Oxygen production by pressure swing adsorption
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absorbent
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Oxygen purification and utilization
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Methane extraction technology – coalbed methane
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VOC tail gas disposal
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Special acid regeneration equipment
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Coke gas purification technology
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Hydrogen production from coke oven gases
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Waste acid regeneration
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CO removal by pressure swing adsorption
Ionic liquid desulfurizer
Ionic liquids are substances consisting of anions and cations that exist in a liquid state at or near room temperature. Unlike typical organic solvents, ionic liquids do not contain electrically neutral molecules; they are all composed of anions and cations.
Description
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Ionic liquid desulfurizer
1.Technical introduction
Ionic liquids are substances consisting of anions and cations that exist in a liquid state at or near room temperature. Unlike typical organic solvents, ionic liquids do not contain electrically neutral molecules; they are all composed of anions and cations.
Chengdu Huaxi Chemical Technology Co., Ltd. summarized domestic and foreign flue gas desulfurization technology based on laboratory screening and a series of small-scale simulation tests to determine the absorber formula, absorption, desorption characteristics, solution corrosivity, thermal stability, salt accumulation and other properties of determining the test results show that: laboratory screening of the absorber has stable performance, low vapor pressure, absorption selection Laboratory absorbent has advantages stable performance, low vapor pressure, strong sulfur dioxide selective absorption ability and high desulfurization efficiency.
The HXDS-III ionic liquid desulfurizer used in this process is an aqueous solution composed of organic cation and inorganic anion, adding a small amount of activator, antioxidant and corrosion inhibitor, which has good SO2 gas absorption and desorption ability. It has been tested by the national authority and meets the requirements of the environmental protection industry.
Secondly, technical specifications
(1) Ionic liquids generally have no vapor pressure, so they do not produce harmful gases to pollute the atmosphere during use;
(2) The physical and chemical properties of ionic liquids can be controlled by using different combinations of anions and cations, i.e. ionic liquids have excellent design ability, and special functional ionic liquids can be obtained by molecular design;
(3) Ionic liquids have broad application prospects in gas purification, extraction and separation, and catalytic reactions;
(4) The most important feature of ionic liquids is that when SO2 is removed from flue gas, high purity SO2 is produced as a by-product, allowing valuable sulfur resources to be recovered. High purity SO2 can be used as an excellent raw material for the production of liquid sulfur dioxide, sulfuric acid, sulfur and other chemical products.
Applications
Device for desulfurization of ionic liquids, device for desulfurization of organic amines, device for desulfurization of other amines.
Typical Performance
| serial number | Location | content |
| 1 | Factory in Guangxi Province | Supply of ionic liquid |
| 2 | Factory in the province | Supply of ionic liquid |
| 3 | Factory in the province | Supply of ionic liquid |
| 4 | Factory in the province | Supply of ionic liquid |
| 5 | Factory in the province | Supply of ionic liquid |
| 6 | Factory in Xinjiang region | Supply of ionic liquid |
| 7 | Factory in Inner Mongolia | Supply of ionic liquid |
| 8 | Factory in Qinghai Province | Supply of ionic liquid |
| 9 | Factory in the province | Supply of ionic liquid |
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This unit is an exclusive block device for the ionic liquid flue gas desulfurization project and is the key equipment for the ionic liquid desulfurization process, the desalting device is designed to remove harmful impurities such as sulfuric acid roots, chlorine and fluorine in the ionic liquid; Sodium Removal Device are used to remove harmful cationic impurities such as sodium in ionic liquid.
Oxygen purification and utilization
In the production and combustion process of lithium batteries, residual high-temperature oxygen-rich flue gas is generated, in the traditional method, usually after environmental treatment, it is directly discharged into the atmosphere as exhaust gas, which leads to large oxygen consumption in the production process, high energy consumption, thereby increasing the production cost of lithium batteries.
CO removal by pressure swing adsorption
Purification of carbon monoxide from a mixture containing carbon monoxide is carried out by PSA technology. First remove carbon dioxide, moisture and traces of sulfur from the feed gas; The purified gas enters the VPSA unit to remove hydrogen, nitrogen, methane and other impurities, the adsorbed carbon monoxide is removed as a product after vacuum desorption during decompression.
VOC tail gas disposal
Tank and loading waste gas, tail gas containing VOC in petrochemical and chemical industries. It is first condensed using the PSA method and then disposed of by condensation, which meets environmental drainage requirements and allows the recycling of some organic matter. Installation scale: 100-3000nm3/h
Methane extraction technology – coalbed methane
At present, both at home and abroad, the main method for separating oxygenated coalbed methane is membrane separation, oxygen removal method, pressure swing adsorption (PSA) method, direct liquefaction method. After comprehensive comparative study of other low-enrichment gas separation technologies, Huaxi, based on its own low-concentration gas development technology, with complete analysis of the properties of the source gas, adopted pressure swing adsorption technology to separate CH4 and N2/O2 under micro-pressure conditions. Gas with low concentration and methane content of 10 to 15% can be enriched up to 30% at a time for combustion and power generation, as well as secondary enrichment for natural gas production. Installation scale: 2000~30000nm³/h.
Flue gas denitrification SCR、SNC
Technology Description Technology Description There are two main denitration methods (1) Selective Catalytic Reduction (SCR) technology and (2) Selective Non-Capital Reduction (SNCR) technology.
Battery material precursor production technology
The regeneration of waste hydrochloric acid in steel mills mainly solves the recycling of hydrochloric acid and the recycling of iron powder, reducing wastewater emissions, a major role in solving environmental problems. Spray roasting hydrochloric acid regeneration methods can also be used to regenerate hydrochlorinated titanium white industry leach solutions, produce cobalt oxide powders using cobalt chloride and various metal oxides using chloride (hydrochloric acid regeneration of various metal chlorides).
absorbent
An adsorbent is a solid substance that can effectively adsorb certain components from gases or liquids. Adsorbents usually have the following characteristics: large specific surface area, suitable pore structure and surface structure
Hydrogen production by splitting methanol
This process is based on the convenient source of methanol and desalting water as raw materials, at a temperature of 220-280°C, a special catalyst is catalyzed into converted gas containing hydrogen and carbon dioxide, the principle of which is as follows: Main reaction: CH3OH=CO+2H2 +90.7 kJ/mol CO+H2O=CO2+H2 -41.2 kJ/mol General reaction: CH3OH+H2O=CO2+3H2 +49.5 kJ/mol Auxiliary reaction: 2CH3OH=CH3OCH3+H2O -24.9 kJ/mol CO+3H2=CH4+H2O -+206.3 kJ/mol
Coal gas organic sulfur fine removal technology
Because blast furnace gas contains organic sulfur, H2S and other impurities, if blast furnace gas is used as fuel, the SO2 in the flue gas does not meet emission standards. There are two main measures to reduce emissions: blast furnace gas desulfurization or exhaust flue gas desulfurization.
Food grade CO2 purified
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MPS decarbonization technology
This technology is used to extract the greenhouse gas CO2 from flue gases, and the recovered CO2 can be used to solve the carbon imbalance problem in methanol or urea using natural gas as a feedstock.
Ionic liquid desulfurization technology
Ionic liquid house gas desulphurization technology is mainly designed to treat and utilize sulfur dioxide in flue gas and other industrial waste gases. The most important feature of the technology is that, simultaneously with the removal of sulfur dioxide from the flue gas, high-purity sulfur dioxide (>99.5%) is produced by-product and sulfur pollutants are recycled. High-purity sulfur dioxide can serve as an excellent raw material for the production of liquid sulfur dioxide, sulfuric acid, sulfur and other chemical products.
CO2 removal by pressure swing adsorption
PSA CO separation technology is widely used in synthetic ammonia, methanol, alkali and industrial CO2 separation decarbonization plants, as well as CO2-containing tail gas recovery plants, due to the high degree of automation, convenient control of removal precision, low energy consumption and a wide range of applications.