| 摘要 |
In a method and device for safe use of meterials generating ammonia irreversibly, a first ammonia generating material (1a) capable of generating ammonia irreversibly and/or its decomposition product and a second ammonia storage material (2c) capable or reversibly or irreversibly ad- or absorbing ammonia which has a lower ammonia vapour pressure than said ammonia generating material and/or its decomposition product and is only partially saturated with or completely void of ammonia are brought into fluid communication with each other, when a vapour pressure of said first ammonia generating material and/or its decomposition product is at or higher than the pressure threshold, for ad- or absorbing ammonia released from the decomposition of the first ammonia generating material. An automotive NOx treatment system (200) comprising such apparatus (100, 100') is also described. |
