摘要:
Disclosed is a method for the selective catalytic reduction of NOx in waste/exhaust gas by using ammonia provides by heating one or more salts of formula Ma(NH3)nXz, wherein M represents one or more cations selected from alkaline earth metals and transition metals, X represents one or more anions, a represents the number of cations per salt molecule, z represents the number of anions per salt molecule, and n is a number of from 2 to 12, the one or more salts having been compressed to a bulk density above 70% of the skeleton density before use thereof.
摘要翻译:公开了一种通过使用通过加热一种或多种式M a(NH 3)n X z的盐提供的氨来选择性催化还原废气/废气中的NOx的方法,其中M表示一种或多种选自碱土金属和过渡金属的阳离子, X表示一个或多个阴离子,a表示每个盐分子的阳离子数,z表示每个盐分子的阴离子数,n表示2至12的数,该一种或多种盐已被压缩至体积密度 高于其使用前骨架密度的70%。
摘要:
A method of storing and delivering ammonia and the use of electromagnetic radiation for desorption of ammonia from a chemical complex. Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases. The compositional formula of the metal ammine complexes is M(NH3)nXz, where M2+ represents one or more metal ions capable of binding ammonia, X represents one or more anions, n is the coordination number (from 2 to 12), and z the valency of the metal ion (and thus the total number of compensating anion charges). Ammonia is released non-thermally by photon-activation using electromagnetic irradiation of the complex bond between ammonia coordinated to the metal ion
摘要翻译:一种储存和输送氨的方法,以及使用电磁辐射从化学络合物中解氨的方法。 应用固体金属氨络合物用于安全和高密度地储存氨,以用作废气中选择性催化还原NOx的还原剂。 金属络合物的组成式为M(NH 3)n X z,其中M 2 +表示一个或多个能结合氨的金属离子,X表示一个或多个阴离子,n为配位数(2至12),z为 金属离子的化合价(因此补偿阴离子电荷的总数)。 通过使用与金属离子配位的氨之间的复合键的电磁照射,通过光子激活而非热释放氨
摘要:
Disclosed is a method for the selective catalytic reduction of NOx in waste/exhaust gas by using ammonia provides by heating one or more salts of formula Ma(NH3)nXz, wherein M represents one or more cations selected from alkaline earth metals and transition metals, X represents one or more anions, a represents the number of cations per salt molecule, z represents the number of anions per salt molecule, and n is a number of from 2 to 12, the one or more salts having been compressed to a bulk density above 70% of the skeleton density before use thereof.
摘要:
A method of storing and delivering ammonia and the use of electromagnetic radiation for desorption of ammonia from a chemical complex. Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases. The compositional formula of the metal ammine complexes is M(NH3)nXz, where M2+ represents one or more metal ions capable of binding ammonia, X represents one or more anions, n is the coordination number (from 2 to 12), and z the valency of the metal ion (and thus the total number of compensating anion charges). Ammonia is released non-thermally by photon-activation using electromagnetic irradiation of the complex bond between ammonia coordinated to the metal ion.
摘要翻译:一种储存和输送氨的方法,以及使用电磁辐射从化学络合物中解氨的方法。 应用固体金属氨络合物用于安全和高密度地储存氨,以用作废气中选择性催化还原NOx的还原剂。 金属络合物的组成式为M(NH 3)n X z,其中M 2 +表示一个或多个能结合氨的金属离子,X表示一个或多个阴离子,n为配位数(2至12),z为 金属离子的化合价(因此补偿阴离子电荷的总数)。 通过使用与金属离子配位的氨之间的复合键的电磁照射,通过光子激活而非热释放氨。
摘要:
A solid ammonia storage and delivery material A solid ammonia storage material comprising: an ammonia absorbing salt, wherein the ammonia absorbing salt is an ionic salt of the general formula: Ma(NH3)nXz, wherein M is one or more cations selected from alkaline earth metals, and/or one or more transition metals, such as Mn, Fe, Co, Ni, Cu, and/or Zn, X is one or more anions, a is the number of cations per salt molecule, z is the number of anions per salt molecule, and ri is the coordination number of 2 to 12, wherein M is Mg provides a safe, light-weight and cheap compact storage for ammonia to be used in the automotive industry.
摘要翻译:一种固体氨储存和输送材料一种固体氨储存材料,包括:氨吸收盐,其中所述氨吸收盐是通式为Ma(NH 3)n X z的离子盐,其中M是一种或多种选自碱土金属的阳离子 金属和/或一种或多种过渡金属如Mn,Fe,Co,Ni,Cu和/或Zn,X是一种或多种阴离子,a是每个盐分子的阳离子数,z是 每个盐分子的阴离子和ri是2至12的配位数,其中M是Mg,为汽车工业中使用的氨提供了安全,重量轻且便宜的紧凑型存储。
摘要:
A solid ammonia storage and delivery material comprising an ammonia absorbing/desorbing solid material, said storage and delivery material having been compacted to a density above 50% of the theoretic skeleton density provides a solid ammonia storage material which is easy to produce and handle and has a very high density of stored ammonia which is readily released under controlled conditions even though the porosity of the material is very low, and which storage material is safe for storage and transport of ammonia without special safety measures.
摘要:
Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases. The compositional formula of the metal ammine complexes is M(NH3)nXz, where MZ+ represents one or more metal ions capable of binding ammonia, X represents one or more anions, n is the coordination number (from 2 to 12), and z the valency of the metal ion (and thus the total number of compensating anion charges). Ammonia is released by generating a reduced gas-phase pressure of ammonia inside the container, which is below the equilibrium desorption pressure of ammonia at the operating temperature of the storage material thus enabling the unit to be operated is a safe manner with lower operating temperature and pressure.
摘要翻译:应用固体金属氨络合物用于安全和高密度地储存氨,以用作废气中选择性催化还原NOx的还原剂。 金属络合物的组成式为M(NH 3)n X z,其中MZ +表示一种或多种能够结合氨的金属离子,X表示一种或多种阴离子,n为配位数(2至12),z为 金属离子的化合价(因此补偿阴离子电荷的总数)。 通过在储存材料的工作温度下产生氨的气相压降低于储存材料的操作温度下的氨的平衡解吸压力来释放氨,从而能够使操作该装置的操作更安全,并具有较低的操作温度和 压力。
摘要:
A solid ammonia storage and delivery material comprising an ammonia absorbing/desorbing solid material, said storage and delivery material having been compacted to a density above 50% of the theoretic skeleton density provides a solid ammonia storage material which is easy to produce and handle and has a very high density of stored ammonia which is readily released under controlled conditions even though the porosity of the material is very low, and which storage material is safe for storage and transport of ammonia without special safety measures.
摘要:
A process for saturating a solid material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia comprises treating said solid material under a pressure and associated temperature located on the vapor pressure curve of ammonia with an amount of liquid ammonia sufficient to saturate said solid material and an additional amount of a cooling agent selected from liquid ammonia, liquid or solid CO2, hydrocarbons and hydrohalocarbons that have a higher vapour pressure than ammonia, ethyl ether, methyl formate, methyl amine and ethyl amine, such that |Qabs|≦|Qevap|+Qext, wherein Qabs is the amount of heat released from said solid material when it absorbs ammonia from the liquid phase thereof to the point where it is saturated with ammonia, Qevap is the amount of heat absorbed by said cooling agent when it evaporates, and Qext is the amount of heat exchanged with the surroundings and is positive, if heat is removed from the process by external cooling, and negative, if heat is added to the process from the surroundings.
摘要:
A method of saturating reversible ammonia storage materials inside a container for the purpose of achieving high volumetric ammonia storage capacity and containers filled with the materials are disclosed.