Synthetic Natural Gas Technology
Never stop on the development path of pursuing green chemical industry
Innovation
By adopting a cyclic process of multi-stage adiabatic and isothermal reactors in series and parallel, the temperature inside the adiabatic reactor and the isothermal reactor can be adjusted to the optimal level. This improves the conversion rate of CO and CO2, and the efficiency of heat recovery. High-quality steam can be produced as byproducts.
Technical Advantages
01
The combination of adiabatic and isothermal reactors improves the degree of reaction, and the product meets the GB 17820-2018 natural gas class I standard;
02
High- and medium-pressure steam as byproducts, with a steam production rate of 1.95~2.05 tons per KNm3;
03
The adiabatic reactor is directly connected to the residual heat recovery device, safe for operation.
Process Diagram
| 1 | 1#Adiabatic reactor | 2 | 2#Adiabatic reactor |
| 3 | 1#Water cooler | 4 | 1#Water separator |
| 5 | isothermal reactor | 6 | Circulation pump |
| 7 | Tower preheater | 8 | 2#Water cooler |
| 9 | 1#Residual heat boiler | 10 | 2#Residual heat boiler |
| 11 | 2#Water separator | 12 | gas drum |
| 1 | 1#Adiabatic reactor | 2 | 2#Adiabatic reactor |
| 3 | 1#Water cooler | 4 | 1#Water separator |
| 5 | 3#Adiabatic reactor | 6 | isothermal reactor |
| 7 | tower preheater | 8 | 2#Water cooler |
| 9 | Circulation pump | 10 | 1#Residual heat boiler |
| 11 | 2#Water separator | 12 | gas drum |
| 13 | 2#Residual heat boiler |
Applications
Shandong Rongxin Coalification Co., Ltd.'s 10Nm3/h Coking Furnace Synthetic Natural Gas Sidestream Experimental Plant
By establishing an SNG sidestream experimental plant and conducting field experiments at a coking plant, an evaluation was made of GoodChina's methane conversion catalyst and coking furnace gas synthetic natural gas process. After 1200 hours of operation: the total carbon conversion rate of the four-stage cascade experimental plant exceeded 95%, with a yield of approximately 2.0 Nm3COG/Nm3SNG, and the methane content in the SNG product reached 89%~91%; the methane conversion catalyst exhibited good reaction activity, but there was a downward trend in catalyst activity in the first stage reactor, which was confirmed to be due to various toxic substances such as high-carbon organic compounds and sulfur chlorine in the coking furnace gas affecting the catalyst, providing valuable experience for industrialization. The application of the SNG sidestream experimental plant provides an industrial production process route for large-scale industrial plants for carbon removal and water splitting processes, optimizes and verifies some key control point indicators, and provides a good reference basis for industrialization.