Questionnaire survey
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1. What process is used for gas production? 2. What process is used for desulfurization? 3. What process is used for the transformation? 4. What purification process is used? 5. What process is used for refining? 6. What process is used for ammonia synthesis? Everyone is welcome to speak up actively?
This post was last edited by 654262293 on 2010-11-17 at 11:38. 1. Gas production is carried out using a fixed-bed batch coal gasification process. 2. Desulfurization is done via wet desulfurization (KCA) method, while advanced desulfurization is achieved through zinc oxide desulfurization. 3. Shift reaction is conducted using a medium-temperature shift process combined with a sulfur-resistant low-temperature shift process. 4. Purification is accomplished using the MDEA process. 5. Refining is carried out through methanation. 6. Ammonia synthesis is performed using domestic medium-pressure synthesis technology
Gas production is achieved through heat-exchange conversion: iron oxide is used in combination with zinc oxide for high-temperature processes. Desulfurization is carried out at room temperature upon entry into the plant. Conversion is done using high and low voltage converters, carbon removal is accomplished via the hot potassium alkali method, purification is performed through methanation, and synthesis takes place in axial radial synthesis towers. Additionally, there is another set of systems that use box furnaces for conversion, with cold-quench synthesis towers for synthesis; everything else remains the same
Fixed-bed batch gas production, tannin-based desulfurization, full low-temperature conversion, carbon-propylene liquid decarburization or pressure swing adsorption decarburization, copper washing for refining, etc
In the fixed-bed batch gasification process, the raw coal used is a mixture of lump coal and briquetted coal; 1.1 tons of raw coal are required per ton of ammonia produced (with briquetted coal being converted to an equivalent amount of lump coal at 75%)； The desulfurization of semi-water gas uses an SDS high-efficiency desulfurizing agent as the liquid-phase desulfurizer based on soda ash ； The transformation uses a fully low-temperature process, with 65 kilograms of bituminous coal consumed per ton of ammonia produced ； The compressor uses a reciprocating six-stage compression system ； Purification is achieved through pressure swing adsorption decarburization + carbonization process ； Refining uses the copper washing process; it is planned to switch to alcohol alkylation instead ； Synthesized as a single-tube baffled tower internals.
1. Gas production; intermittent gas generation. 2. Wet desulfurization (alkaline solution); 3. Drop in conversion during the process. 4. Purification is carried out using the combined alkali production process. 5. Refining is done through copper washing. 6. Single-tube baffled internal cooling tower for ammonia synthesis.
1. Gas production is carried out using a fixed-bed batch coal gasification process. 2. Desulfurization is done via tannin-based desulfurization, while further desulfurization is accomplished using ammonia water. 3. Shift reaction is performed using a medium-high-low-pressure process. 4. Purification is achieved through carbon-propylene decarburization. 5. Refining is carried out using copper washing. 6. Synthesis takes place in a three-axis-one-diameter cold-quench synthesis tower
1. The gas production uses a fixed-bed batch process, and it is planned to add an oxygen-enriched gas production process. 2. Desulfurization is carried out using the wet oxidation method, along with a self-priming regeneration process and activated carbon. 3. The transformation adopts a medium-low-low process. 4. Purification is carried out using carbon-propane decarburization and pressure swing adsorption processes. 5. Refining employs copper washing and alkoxylation processes. 6. Synthetic ammonia production uses a traditional high-pressure process, with internal components consisting of two shafts and one diameter.
1. Gas production uses the Lurgi pressure swing process. 2. Desulfurization and decarburization are carried out using the low-temperature methanol washing process. 3. Shift reaction is performed via the high and low pressure shift processes. 4. Purification is achieved through liquid nitrogen washing. 5. Ammonia synthesis employs the axial-radial synthesis process
Fixed-bed batch gas production, tannin-based desulfurization, full low-temperature shift, pressure swing adsorption for carbon removal, low-pressure methanol, alcohol alkylation processes, etc
Answer: Natural gas pressure conversion is used for gas production; the MEA wet process combined with cobalt-molybdenum zinc oxide is employed for desulfurization; medium- and low-pressure shift processes are used for conversion; the benzene-phenol method is used for purification; methanation is used for refinement; and the Cassali process is used for ammonia synthesis.