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On June 4, Yantai Tongye Chemical Technology Co.
, Ltd.
announced that a 7,000-ton/year high-purity hydrogen sulfide production plant built with its self-developed HYS hydrogen sulfide synthesis technology has achieved smooth operation in a sulfide production plant in Xinjiang
.
The produced hydrogen sulfide gas has a purity of 99.
5%, which fully meets the requirements of the plant for high-purity hydrogen sulfide in the production of dimethyl disulfide products
.
? According to estimates, the plant's daily output of dimethyl disulfide using this new technology has reached 30.
3 tons at the end of May, achieving the design goal of 30 tons per day
.
? The company’s technical leader Sun Xiaohui introduced that the main innovation of HYS hydrogen sulfide synthesis technology is the realization of large-scale production of high-purity hydrogen sulfide
.
The existing hydrogen sulfide preparation technology abroad is a non-catalysis method, which has a low single-pass conversion rate.
The production equipment using this type of technology is small in scale, generally 1,000 to 2,000 tons/year, and the maximum production scale is 5,000 tons/year
.
However, the hydrogen sulfide conversion rate of HYS hydrogen sulfide synthesis technology is ≥95%, the catalyst selectivity is ≥95%, and the plant scale can reach 10,000 tons/year, but the investment is only 1/3 of that of similar foreign equipment.
"HYS hydrogen sulfide synthesis technology Another innovation is to solve the key technical problems such as equipment selection and difficult removal of hydrogen sulfide
.
” According to Sun Xiaohui, they are based on the original high-purity sodium sulfide (hydrogen) production technology by increasing product gas purification and Hydrogen sulfide removal facilities to solve the above problems
.
In addition to the production of dimethyl disulfide, this technology can also be used for the production of fine sulfurized products such as methionine, polyphenylene sulfide, thiophenol, mercaptoethanol, thioglycolic acid, and high-purity sodium sulfide (hydrogen)
.
? HYS hydrogen sulfide synthesis technology is to directly use hydrogen or hydrogen-containing materials and sulfur to produce hydrogen sulfide.
There are a wide range of hydrogen sources, such as methanol/liquid ammonia cracking hydrogen production, natural gas steam reforming hydrogen production, electrolysis hydrogen production, and coke oven gas production hydrogen, coal and the carbonaceous material to synthesis gas and the like
.
In addition, the technology can also adjust the production load and product purity according to the hydrogen source and downstream use.
.
? This technology also has outstanding features in terms of energy saving and emission reduction: the design of its reactor can realize the cascade utilization of heat in the hydrogen sulfide preparation process, which not only solves the problem of excessive heat generation in the previous production process, but also uses excess heat When the hydrogen is preheated, problems such as sulfur tube blockage caused by the sudden drop of the reaction temperature are also avoided
.
This technology is a green production process, with no waste residue, waste liquid and exhaust gas emissions, and a small amount of replaced waste catalyst can be recycled and processed
.
? At present, the technology has been authorized by the national invention patent, and the same industry chemical industry is cooperating with China Enfi Engineering Technology Co.
, Ltd.
to optimize the process based on the high-purity hydrogen sulfide production technology.
The hydrogen sulfide produced is used for the precipitation of heavy metal ions.
The technology is applied to metallurgical wastewater treatment
.
The production facility is scheduled to start up operation in the second half of this year
.
, Ltd.
announced that a 7,000-ton/year high-purity hydrogen sulfide production plant built with its self-developed HYS hydrogen sulfide synthesis technology has achieved smooth operation in a sulfide production plant in Xinjiang
.
The produced hydrogen sulfide gas has a purity of 99.
5%, which fully meets the requirements of the plant for high-purity hydrogen sulfide in the production of dimethyl disulfide products
.
? According to estimates, the plant's daily output of dimethyl disulfide using this new technology has reached 30.
3 tons at the end of May, achieving the design goal of 30 tons per day
.
? The company’s technical leader Sun Xiaohui introduced that the main innovation of HYS hydrogen sulfide synthesis technology is the realization of large-scale production of high-purity hydrogen sulfide
.
The existing hydrogen sulfide preparation technology abroad is a non-catalysis method, which has a low single-pass conversion rate.
The production equipment using this type of technology is small in scale, generally 1,000 to 2,000 tons/year, and the maximum production scale is 5,000 tons/year
.
However, the hydrogen sulfide conversion rate of HYS hydrogen sulfide synthesis technology is ≥95%, the catalyst selectivity is ≥95%, and the plant scale can reach 10,000 tons/year, but the investment is only 1/3 of that of similar foreign equipment.
"HYS hydrogen sulfide synthesis technology Another innovation is to solve the key technical problems such as equipment selection and difficult removal of hydrogen sulfide
.
” According to Sun Xiaohui, they are based on the original high-purity sodium sulfide (hydrogen) production technology by increasing product gas purification and Hydrogen sulfide removal facilities to solve the above problems
.
In addition to the production of dimethyl disulfide, this technology can also be used for the production of fine sulfurized products such as methionine, polyphenylene sulfide, thiophenol, mercaptoethanol, thioglycolic acid, and high-purity sodium sulfide (hydrogen)
.
? HYS hydrogen sulfide synthesis technology is to directly use hydrogen or hydrogen-containing materials and sulfur to produce hydrogen sulfide.
There are a wide range of hydrogen sources, such as methanol/liquid ammonia cracking hydrogen production, natural gas steam reforming hydrogen production, electrolysis hydrogen production, and coke oven gas production hydrogen, coal and the carbonaceous material to synthesis gas and the like
.
In addition, the technology can also adjust the production load and product purity according to the hydrogen source and downstream use.
.
? This technology also has outstanding features in terms of energy saving and emission reduction: the design of its reactor can realize the cascade utilization of heat in the hydrogen sulfide preparation process, which not only solves the problem of excessive heat generation in the previous production process, but also uses excess heat When the hydrogen is preheated, problems such as sulfur tube blockage caused by the sudden drop of the reaction temperature are also avoided
.
This technology is a green production process, with no waste residue, waste liquid and exhaust gas emissions, and a small amount of replaced waste catalyst can be recycled and processed
.
? At present, the technology has been authorized by the national invention patent, and the same industry chemical industry is cooperating with China Enfi Engineering Technology Co.
, Ltd.
to optimize the process based on the high-purity hydrogen sulfide production technology.
The hydrogen sulfide produced is used for the precipitation of heavy metal ions.
The technology is applied to metallurgical wastewater treatment
.
The production facility is scheduled to start up operation in the second half of this year
.
