[Production Version] Daily Question 2018-6-12 (Short Answer)
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How to determine when the reduction of copper-based catalysts for methanol synthesis is complete? Answer: (1) The cumulative water output is close to or reaches the theoretical water output ； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
Answer: (1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction can be determined by referring to the temperature-rise reduction curve
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
Answer: (1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO at the inlet and outlet of the synthesis tower are essentially equal ； (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature rise-reduction curve.
(1) The cumulative water output is close to or reaches the theoretical water output； (2) The water discharge rate is zero or less than 0.2 Kg/h ； (3) The concentrations of H2+CO2 at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature-rise reduction curve.
(1) The cumulative water output is close to or reaches the theoretical value; (2) The water output rate is zero or less than 0.2 Kg/h; (3) The concentrations of (H2+CO) at the inlet and outlet of the synthesis tower are essentially equal. (4) As the hydrogen content increases, the temperature no longer rises; the end of reduction is determined by referring to the temperature rise-reduction curve.