16万吨合成氨厂造气工段的初步设计解读

目录

前言------------------------------------------------------------------------------------------------------------------------------------------ 2

一、绪论 -------------------------------------------------------------------------------------------------------------------------- 3

1.1煤气化发展史 ------------------------------------------------------------------------------------------------------------------- 3

1.2煤气化技术发展趋势---------------------------------------------------------------------------------------------------------- 3

二、生产方法的选择及论证------------------------------------------------------------------------------------------------------------ 3

2.1生产方法的介绍---------------------------------------------------------------------------------------------------------------- 4

2.1.1. 固定床气化法 ------------------------------------------------------------------------------------------------------- 4

2.1.2. 流化床气化 ---------------------------------------------------------------------------------------------------------- 4

2.1.

3. 气流床气化 ---------------------------------------------------------------------------------------------------------- 5

2.1.4 熔浴床气化 ------------------------------------------------------------------------------------------------------------ 5

2.2 生产方案的选择及论证------------------------------------------------------------------------------------------------------ 6

三、常压固定床间歇气化法 ---------------------------------------------------------------------------------------------------------- 6

3.1 半水煤气定义 ------------------------------------------------------------------------------------------------------------------ 6

3.2 固定床气化法的特点--------------------------------------------------------------------------------------------------------- 6

3.3 生产半水煤气对原料的选择 ----------------------------------------------------------------------------------------------- 6

3.4半水煤气制气原理------------------------------------------------------------------------------------------------------------- 8

3.5 发生炉内燃料分布情况------------------------------------------------------------------------------------------------------ 9

3.6间歇式制半水煤气的工艺条件 ------------------------------------------------------------------------------------------- 10

3.7间歇式气化的工作循环 ---------------------------------------------------------------------------------------------------- 11

四、工艺计算部分 ---------------------------------------------------------------------------------------------------------------------- 12

4.1 煤气发生炉（含燃烧室）的物料及热量衡算------------------------------------------------------------------------ 12

4.2吹风阶段的计算：----------------------------------------------------------------------------------------------------------- 15

4.3制气阶段的计算（以100kg入炉燃料为基准） --------------------------------------------------------------------- 17

4.4总过程计算 -------------------------------------------------------------------------------------------------------------------- 21

4.5 配气计算 ---------------------------------------------------------------------------------------------------------------------- 23

4.6消耗定额 ----------------------------------------------------------------------------------------------------------------------- 24

4.7吹净时间核算 ----------------------------------------------------------------------------------------------------------------- 24

4.8废热锅炉的热量衡算-------------------------------------------------------------------------------------------------------- 25

4.8.1设已知条件----------------------------------------------------------------------------------------------------------- 26

4.8.2热量衡算-------------------------------------------------------------------------------------------------------------- 27

4.8.3热量平衡和总固体平衡 ------------------------------------------------------------------------------------------- 29

五、设备计算----------------------------------------------------------------------------------------------------------------------------- 30

5.1设计说明 ----------------------------------------------------------------------------------------------------------------------- 30

5.2煤气炉台数的确定----------------------------------------------------------------------------------------------------------- 32

5.3主要设备一览表-------------------------------------------------------------------------------------------------------------- 32 参考文献 ----------------------------------------------------------------------------------------------------------------------------------- 34