Productivity evaluation method, productivity evaluation device, program, and recording medium

Abstract

This productivity evaluation method is for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from the gas obtained in the first step in the presence of a catalyst, said method including: a first carbon mass calculation stage of calculating mass of carbon contained in the waste material, a second carbon mass calculation stage of calculating mass of carbon contained in the chemical substance produced in said process, and a productivity evaluation stage of evaluating the productivity of the chemical substance based on values of the mass of carbon which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.

1 . A productivity evaluation method for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from, as a raw material, the gas obtained in the first step in the presence of a catalyst, said method comprising:
 a first carbon mass calculation stage of calculating mass of carbon contained in the waste material,   a second carbon mass calculation stage of calculating mass of carbon contained in the chemical substance produced in said process, and   a productivity evaluation stage of evaluating the productivity of the chemical substance based on values of the mass of carbon which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.   
     
     
         2 . The productivity evaluation method according to  claim 1 , further comprising:
 a third carbon mass calculation stage of calculating mass of carbon contained in the gas obtained in the first step of said process, and   a fourth carbon mass calculation stage of calculating mass of carbon contained in a residue of the waste material resulting from the first step of said process,   wherein, in the first carbon mass calculation stage, the mass of carbon contained in the waste material is calculated based on values of the mass of carbon which are calculated in the third carbon mass calculation stage and the fourth carbon mass calculation stage.   
     
     
         3 . The productivity evaluation method according to  claim 2 , wherein when a combustion improver is used in the first step of said process, said productivity evaluation method further comprises:
 a fifth carbon mass calculation stage of calculating mass of carbon contained in the combustion improver used in the first step of said process,   wherein in the first carbon mass calculation stage, mass of carbon contained in the waste material is calculated based on values of the carbon mass which are calculated in the third carbon mass calculation stage, the fourth carbon mass calculation stage, and the fifth carbon mass calculation stage.   
     
     
         4 . The productivity evaluation method according to  claim 1 , further comprising:
 a carbon dioxide emission calculation stage of calculating an amount of carbon dioxide emission caused due to use of energy in the first step of said process,   wherein in the productivity evaluation stage, the productivity of the chemical substance is evaluated based on values of the carbon mass which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage and a value of the amount of carbon dioxide emission calculated in the carbon dioxide emission calculation stage.   
     
     
         5 . The productivity evaluation method according to  claim 1 ,
 wherein the chemical substance is a compound represented by the formula CxHyOz, so that mass of carbon contained in the compound CxHyOz is calculated in the second carbon mass calculation stage and that the productivity of the compound CxHyOz is evaluated in the productivity evaluation stage.   
     
     
         6 . A charging system which determines a charge for a waste material depending on the productivity of the chemical substance evaluated by the productivity evaluation method according to  claim 1 . 
     
     
         7 . A productivity evaluation device for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from, as a raw material, the gas obtained in the first step in the presence of a catalyst, said device comprising:
 a first carbon mass calculation unit for calculating mass of carbon contained in the waste material,   a second carbon mass calculation unit for calculating mass of carbon contained in the chemical substance produced in said process, and   a productivity evaluation unit for evaluating the productivity of the chemical substance based on values of the carbon mass which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.   
     
     
         8 . A program for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from, as a raw material, the gas obtained in the first step in the presence of a catalyst, said program causing a computer to perform functions of:
 a first carbon mass calculation unit for calculating mass of carbon contained in the waste material,   a second carbon mass calculation unit for calculating mass of carbon contained in the chemical substance produced in said process, and   a productivity evaluation unit for evaluating the productivity of the chemical substance based on values of the carbon mass which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.   
     
     
         9 . A recording medium having recorded therein a program for evaluating productivity of a chemical substance in a process comprising a first step of obtaining gas from a waste material and a second step of synthesizing a chemical substance from, as a raw material, the gas obtained in the first step in the presence of a catalyst, said program causing a computer to perform functions of:
 a first carbon mass calculation unit for calculating mass of carbon contained in the waste material,   a second carbon mass calculation unit for calculating mass of carbon contained in the chemical substance produced in said process, and   a productivity evaluation unit for evaluating the productivity of the chemical substance based on values of the carbon mass which are calculated in the first carbon mass calculation stage and the second carbon mass calculation stage.