DKT Energy Technology

National High-Tech Enterprise; Sichuan Provincial Enterprise Technology Center; Class B Qualification For Chemical Engineering Design; Class A Qualification For Environmental Pollution Prevention And Control; Pressure Pipeline GC1 Design Qualification

Image Name

A technical renovation and expansion project for 1,500 tons per year of polysilicon and supporting industries at a certain Xinjiang Silicon Industry Co., Ltd., under TBEA; and a TBEA project for the construction of two 6,000-ton-per-year polysilicon production facilities along with associated supporting industries.



Detailed Introduction


Project Content

Pressure Swing Adsorption Hydrogen Production Unit ( Skid-mounted )

Pressure Swing Adsorption Hydrogen Production Unit

Regenerative Hydrogen Purification Unit ( Skid-mounted )

 

Scale   

700Nm3/h Pressure Swing Adsorption Hydrogen Production Unit ( Skid-mounted )

1000Nm3/h Pressure Swing Adsorption Hydrogen Production Unit

1100Nm3/h Regenerative Hydrogen Purification Unit ( Skid-mounted )

 

Technical Indicators  

Feed gas flow rate: 700Nm3/h       

Feed gas composition: 98.2% H2 1.5% N2 and small amounts of chlorosilanes, hydrogen chloride, methane, carbon monoxide, carbon dioxide, and other substances                                       

Work stress: 1.1MPa                                    

Hydrogen content of the product: ≥ 99.9%      

The contents of chlorosilanes, hydrogen chloride, methane, carbon monoxide, and carbon dioxide in the product shall all be ≤ 1ppm                      

Hydrogen recovery rate: ≥ 90.0%    

Feed gas flow rate: 1000Nm3/h       

Feed gas composition: 81.9% H2 1.6% N2 1.2% Chlorosilane, 15.3% Hydrogen chloride and small amounts of methane, carbon monoxide, carbon dioxide, and other substances                                       

Work stress: 1.2MPa                                    

Hydrogen content of the product: ≥ 99.9%      

Chlorosilane content in hydrogen: None      

Hydrogen chloride content in hydrogen: ≤ 50ppm         

Silicon chloride in the desorbed gas + Hydrogen chloride content: ≥ 78%         

In the desorbed gas H2 Content: ≤ 20%                     

Recovery rate: ≥ 95.0%

Feed gas flow rate: 1100Nm3/h       

Feed gas composition: 97.8% H2 2.0% N2 and small amounts of chlorosilanes, hydrogen chloride, methane, carbon monoxide, carbon dioxide, and other substances                                       

Work stress: 1.1MPa                                    

Hydrogen content of the product: ≥ 99.9%      

The contents of chlorosilanes, hydrogen chloride, methane, carbon monoxide, and carbon dioxide in the product shall all be ≤ 1ppm                       

Hydrogen recovery rate: ≥ 90.0%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Technical Features                                           

The small-capacity unit is skid-mounted, requiring minimal floor space, reducing capital investment, and enabling flexible and convenient installation.


Keyword: A technical renovation and expansion project for 1,500 tons per year of polysilicon and supporting industries at a certain Xinjiang Silicon Industry Co., Ltd., under TBEA; and a TBEA project for the construction of two 6,000-ton-per-year polysilicon production facilities along with associated supporting industries.

Sichuan DKT Energy Technology Co., Ltd.( A subsidiary of Hydrexia (China))