Production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate
A light calcium carbonate, production process technology, applied in the direction of calcium carbonate/strontium/barium, chemical instruments and methods, products, etc., can solve the problems of high operating cost and high construction cost, and achieve convenient operation and maintenance management, low investment, The effect of increasing the reaction rate
Inactive Publication Date: 2010-11-24
刘海清
View PDF5 Cites 17 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, most of the current research is mainly on how to separate and concentrate carbon dioxide, and then store it, which has not achieved the purpose of truly removing carbon dioxide, and there are still disadvantages such as high construction costs and high operating costs.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0042] Taking the decarbonization of flue gas from a 40T coal-fired boiler as an example, the explanation is as follows:
[0043] The flue gas volume at the entrance of the supergravity field absorption tower is 60000Nm 3 / h, CO 2 The concentration is 225g / Nm 3 , NH 3 ·H 2 O and CO 2 The molar ratio is 1.01, CaSO 4 with (NH 4 ) 2 CO 3 The molar ratio is 0.9. Under the above conditions, the flue gas CO at the outlet of the supergravity field absorption tower 2 The concentration is 33g / Nm 3 , CO 2 The removal rate can reach 85%, the output of light calcium carbonate is 10t / h, and the output of ammonium compound fertilizer is 13t / h, which can bring considerable benefits to the enterprise.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate. The process comprises the following steps of: performing gas-liquid two-phase high strength mass transfer absorption reaction on the primary smoke through a super-gravity field absorption tower by using dilute aqueous ammonia as an absorbent to remove carbon, discharging the treated smoke through a chimney, and performing further reaction treatment on byproducts of the carbon removal reaction to obtain the ammonium compound fertilizer and the light calcium carbonate with good economic values. The whole set of reaction and separation device for supporting the process comprises the super-gravity field absorption tower, a static mixer 19, a deep reaction tank 20, a cyclone 24, an ammonium compound fertilizer reclaiming system 26, a light calcium carbonate reclaiming system 28, various pumps and the like, wherein the super-gravity field absorption tower is used at a chemical reaction absorption section for removing the carbon dioxide. The brand-new process has the advantages of high efficiency, low investment and low running expense.
Description
technical field [0001] The invention relates to a production process for removing carbon dioxide from flue gas and preparing various ammonium compound fertilizers and light calcium carbonate. Background technique [0002] Since carbon dioxide is the main gas that causes the "greenhouse effect", problems such as the intensification of the greenhouse effect pose severe challenges to the sustainable development of the environment and economy. Therefore, the reduction technology of carbon dioxide in the flue gas that causes the greenhouse effect and global climate change has become the focus of all countries. focus. However, most of the current research is mainly on how to separate and concentrate carbon dioxide, and then store it, which has not achieved the purpose of truly removing carbon dioxide, and there are still disadvantages such as high construction costs and high operating costs. Therefore, research and development of a process technology and equipment with simple pro...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/62C05G1/00C01F11/18
CPCY02C10/04Y02C20/40Y02P20/151
Inventor 刘海清
Owner 刘海清
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
