Clean gas preparation method and preparation system
A preparation system and coal gas technology, applied in the field of coal gasification, can solve the problems of large investment scale, long investment cycle, and unsuitability for small and medium-sized coal chemical enterprises, and achieve the effects of improving utilization rate, avoiding waste, and reducing scale
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] figure 1 It is a flow chart of the clean gas preparation method provided by Embodiment 1 of the present invention. like figure 1 As shown, the clean gas preparation method provided in this embodiment comprises the following steps:
[0046] S101, conveying the pulverized coal to the normal and low pressure gas generator under pressure;
[0047] Specifically, the main component of pulverized coal is C, containing a small amount of H, O, S, N, Si, etc., the water content of pulverized coal is less than 2%, and the particle size of pulverized coal particles is more than 90% (mass percentage) less than 100 microns.
[0048] Pressurized conveying, specifically refers to through the pulverized coal conveying system, using N 2 or CO 2 As a carrier gas, the pulverized coal is blown to the normal and low pressure gas generator.
[0049] S102. Make the pulverized coal and the gasification agent undergo a gasification reaction in the normal and low pressure gasifier to genera...
Embodiment 2
[0077] figure 2 The flow chart of the clean gas preparation method provided by Embodiment 2 of the present invention, such as figure 2 As shown, the clean gas preparation method provided in this embodiment also includes:
[0078] Prepare raw coal into coal powder;
[0079] After quenching the mixture of molten crude gas and slag with the quenching medium to obtain separated crude gas and slag, it also includes:
[0080] Collect slag and discharge the collected slag regularly;
[0081] Specifically, before the pulverized coal is pressurized and transported to the normal and low-pressure gasifier, the raw coal can be prepared into pulverized coal by crushing, grinding, drying, filtering and other steps. The moisture content of the pulverized coal is less than 2%, and 90 % (mass percentage) or more of the pulverized coal particles have a particle diameter less than 100 microns. After chilling the mixture of molten crude gas and slag with the chilling medium to obtain the se...
Embodiment 3
[0095] image 3 A schematic structural diagram of the clean gas preparation system provided in Embodiment 3 of the present invention, such as image 3 As shown, the clean gas preparation system provided in this embodiment includes a pulverized coal conveying system 1, a gasification reaction system 2, a cascade waste heat utilization system 3, a dry-wet combined dust removal unit 4, and a desulfurization unit 5;
[0096] The pulverized coal conveying system 1 is used to convey the pulverized coal to the gasification reaction system 2 under pressure;
[0097] The gasification reaction system 2 includes a multifunctional combined burner 21, an atmospheric and low pressure gas generator 22 and a chilling unit 23; the atmospheric and low pressure gas generator 22 is used to provide a reaction place for the gasification reaction of pulverized coal and gasification agent; The multifunctional combined burner 21 is used to ignite and increase the temperature of the normal and low pre...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More