A method is disclosed for producing an ammonium-based solid, particulate composition comprising an additive in a plant comprising a liquid section and a solid section comprising a particulation unit and an effluent gas treatment unit comprising a scrubber, a scrubber solution storage container and optionally a scrubber evaporator, the method comprising the steps of:
(a) preparing a melt comprising an ammonium salt in the liquid section of the plant;
(b) particulating the melt prepared in step (a) in the particulation unit thereby obtaining an ammonium-based solid, particulate composition and an effluent gas comprising ammonia;
(c) preparing an aqueous scrubbing solution;
(d) treating the effluent gas comprising ammonia from the particulation unit with the aqueous scrubbing solution prepared in step (c) in the scrubber of the effluent gas treatment unit thereby producing a scrubber solution;
(e) storing the scrubber solution produced in step d) in the scrubber solution storage of the effluent gas treatment unit; and
(f) optionally, concentrating the scrubber solution from the scrubber solution storage container in the scrubber evaporator thereby obtaining a concentrated scrubber solution;
(g) adding the scrubber solution obtained from step e) or f) to the melt comprising an ammonium salt;
wherein an additive is added in solid form to any one or more of the aqueous scrubbing solution prepared in step c), the scrubber solution in the scrubber solution storage, or the scrubber concentrator.
本发明公开了一种方法,用于在包括一个液体部分和一个固体部分的工厂中生产一种
铵基固体颗粒组合物,固体部分包括一个颗粒化单元和一个废气处理单元,废气处理单元包括一个洗涤器、一个洗涤器溶液储存容器和可选的一个洗涤器蒸发器,该方法包括以下步骤:
(a) 在设备的液体部分制备包含
铵盐的熔体;
(b) 在微粒化装置中将步骤(a)中制备的熔体微粒化,从而获得
铵基固体、微粒成分和含
氨的废气;
(c) 制备洗涤
水溶液;
(d) 在废气处理单元的洗涤器中,用步骤(c)中制备的
水性洗涤溶液处理来自微粒化单 元的含
氨废气,从而产生洗涤溶液;
(e) 将步骤(d)中产生的洗涤溶液储存在废气处理装置的洗涤溶液储存器中;以及
(f) 可选地在洗涤器蒸发器中浓缩洗涤器溶液储存容器中的洗涤器溶液, 从而获得浓缩洗涤器溶液;
(g) 将从步骤 e) 或 f) 中获得的洗涤溶液添加到包含
铵盐的熔体中;
其中添加剂以固体形式添加到步骤 c) 中制备的洗涤
水溶液、洗涤溶液储存器中的洗涤溶液或洗涤浓缩器中的任意一种或多种溶液中。