| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform the desorption of an odorant from a deodorizing device to absorb the odorant in a gaseous fuel during the operation of an engine. <P>SOLUTION: As a result of the heating with a heater 22, an odorant composition absorbed in the deodorizing device 21 is desorbed from the deodorizing device 21 on condition that a catalyst temperature estimated value and an engine water temperature are not less than the predetermined values respectively, and fed into the CNG engine 10 and a catalyst device 27 at the downstream side. The odorant composition is well burned in the CNG engine 10, and sulfur poisoning resulting from the odorant composition in the catalyst device 27 is difficult to occur on the high-temperature condition of the catalyst and the high-load condition which is the air-fuel ratio is at a rich side. Then, the regeneration of the deodorizing device 21 can be performed during the engine operation, suppressing the sulfur poisoning of the catalyst device 27. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
