| 摘要 |
<p>A combustion analyser apparatus and method for combustion analysing a sample, the analyser comprising a combustion chamber (82) for receiving a sample for combustion therein to form combustion products, and a fluid supply apparatus for supplying fluid(s) into the chamber. The fluid supply apparatus (130-140) comprises a nitrogen oxides (NO x ) generating apparatus (140,190,210,240) and is arranged to supply NO x into the combustion chamber. A yield of sulphur dioxide in the combustion products may thereby be improved. The NO x generating apparatus may be operated at a raised working temperature. The NO x generating apparatus may be provided by an ozonator with a supply of nitrogen and oxygen. A Venturi tube arrangement (246) may draw the generated NO x into a (carrier or oxygen) gas line to the combustion chamber. Ozone may be supplied to the combustion products to convert nitrogen monoxide therein to nitrogen dioxide. The NO x and ozone may be supplied by a single device (210,240).</p> |
