公开(公告)号：US07081230B2

公开(公告)日：2006-07-25

申请号：US10065759

申请日：2002-11-15

申请人： Kenneth Lewis Blanchard

发明人： Kenneth Lewis Blanchard

IPC分类号： C01C1/00 ,  B01J8/04 ,  F28D1/00

CPC分类号： C01C1/0423 ,  B01J8/0469 ,  B01J8/0492 ,  B01J8/0496 ,  B01J23/745 ,  B01J35/0006 ,  B01J2208/00194 ,  B01J2208/00221 ,  B01J2208/0053 ,  B01J2208/00769 ,  B01J2208/00814 ,  B01J2208/00884 ,  B01J2208/025 ,  B01J2219/0002 ,  B01J2219/00038 ,  F28D7/16 ,  F28F9/26 ,  Y02P20/52

摘要： A vertical, fixed-bed ammonia converter wherein a fixed-bed catalyst zone is configured into two mechanically separated catalyst volumes and two gas streams that operate in parallel. The design maintains the ratio of gas flow to catalyst volume so that there is no catalyst effectiveness penalty. The catalyst beds and gas flow paths are configured so that gas flow is downward through each catalyst volume. Each fixed-bed catalyst zone in the present invention can hold the catalyst in an annular space formed between two concentric shrouds arranged around a shell and tube heat exchanger. The two catalyst beds associated with each zone are situated above one another along the length of an interstage heat exchanger. Pipes or conduits are disposed through the beds to effect the parallel gas flow configuration, or alternatively, annular flows are created via passages through the internal shrouds that contain the catalyst beds.

摘要翻译： 一种立式固定床氨转化器，其中固定床催化剂区被配置成两个机械分离的催化剂体积和两个平行运行的气流。 该设计保持气体流量与催化剂体积的比例，使得没有催化剂有效性损失。 催化剂床和气体流动路径被配置成使得气体流向下通过每个催化剂体积。 本发明中的每个固定床催化剂区域可以将催化剂保持在形成在围绕壳管式换热器的两个同心护罩之间形成的环形空间中。 与每个区域相关联的两个催化剂床沿着级间热交换器的长度位于彼此之上。 管道或导管通过床布置以实现平行气流构造，或者替代地，通过穿过包含催化剂床的内部罩的通道产生环形流。