Method and device for analysis of a mixture of hydrochloric acid and organochlorine compounds contained in gases derived in particular from the incineration of organochlorine compounds

Claim 1

A method for evaluating the extent of destruction by incineration of organochlorine compounds comprising the steps of: passing gases derived from said incineration through a first alkaline solution which is capable of dissolving hydrochloric acid within said gases; measuring the quantity of chloride ions, Q, contained in said first solution by coulometry to provide a value for the quantity of hydrochloric acid liberated at the time of said incineration; absorbing the hydrochloric acid and the chlorine which are present in said incineration derived gases after they have passed through said first solution; initiating combustion of the remaining gases subsequent to said absorption of the hydrochloric acid and the chlorine therefrom in order to burn the entire quantity of organochlorine compounds contained in said remaining gases; passing the gases produced by combustion of the remaining gases through a second solution which is capable of dissolving the hydrochloric acid liberated by the organochlorine compounds at the time of said combustion of remaining gases; measuring the quantity of chloride ions, q, contained in said second solution by coulometry; calculating the ratio q/Q.

Claim 2

A method for evaluating the extent of destruction by incineration of organochlorine compounds comprising the steps of: passing gases derived from said incineration through a first alkaline solution which is capable of dissolving hydrochloric acid within said gases; measuring the quantity of chloride ions, Q, contained in said first solution by coulometry to provide a value for the quantity of hydrochloric acid liberated at the time of said incineration; absorbing the hydrochloric acid and the chlorine which are present in said incineration derived gases after they have passed through said first solution; initiating combustion of the remaining gases subsequent to said absorption of the hydrochloric acid and the chlorine therefrom in order to burn the entire quantity of organochlorine compounds contained in said remaining gases; passing the gases produced by combustion of the remaining gases through a second solution which is capable of dissolving the hydrochloric acid liberated by the organochlorine compounds at the time of said combustion of remaining gases; measuring the quantity of chloride ions, q, contained in said second solution by coulometry; calculating the ratio q/Q.

Claim 9

A device for analyzing a mixture of hydrochloric acid and organochlorine compounds contained in gases, wherein said device comprises: a cell for containing a first solution which is capable of dissolving said hydrochloric acid; means for introducing said first solution into said cell; means for passing said gases through said first solution; a first coulometric cell for measuring the quantity of chloride ions Q contained in said first solution; means for conveying said first solution from said cell into said first coulometric cell; absorption means for absorbing the hydrochloric acid and the chlorine which are present in the remaining gases after they have passed through said first solution; means for conveying said remaining gases from said cell to said absorption means; a combustion chamber for carrying out the complete combustion of the remaining gases; means for conveying said remaining gases from said absorption means to said combustion chamber; means for retaining a second solution which is capable of dissolving the hydrochloric acid liberated by the organo-chlorine compounds at the time of said combustion of remaining gases; means for passing the combustion gases produced by said remaining gases through said second solution; means providing a second coulometric cell for measuring the quantity of chloride ions q contained in said second solution, the solution of said second coulometric cell constituting said second solution; thermostatically controlled means associated with said cell and with said means for measuring q and Q; means for calculating q/Q.

Claim 10

A device for analyzing a mixture of hydrochloric acid and organochlorine compounds contained in gases, wherein said device comprises: a cell for containing a first solution which is capable of dissolving said hydrochloric acid; means for introducing said first solution into said cell; means for passing said gases through said first solution; a first coulometric cell for measuring the quantity of chloride ions Q contained in said first solution; means for conveying said first solution from said cell into said first coulometric cell; absorption means for absorbing the hydrochloric acid and the chlorine which are present in the remaining gases after they have passed through said first solution; means for conveying said remaining gases from said cell to said absorption means; a combustion chamber for carrying out the complete combustion of the remaining gases; means for conveying said remaining gases from said absorption means to said combustion chamber; means for retaining a second solution which is capable of dissolving the hydrochloric acid liberated by the organo-chlorine compounds at the time of said combustion of remaining gases; means for passing the combustion gases produced by said remaining gases through said second solution; means providing a second coulometric cell for measuring the quantity of chloride ions q contained in said second solution, the solution of said second coulometric cell constituting said second solution; thermostatically controlled means associated with said cell and with said means for measuring q and Q; means for calculating q/Q.