A device and method for producing hydrogen from waste coke oven gas
A waste gas and coke oven technology, applied in chemical instruments and methods, using solid contact hydrogen separation, hydrogen and other directions, to achieve the effects of inhibiting side reactions, inhibiting coking and carbon deposition, and high hydrogen production
Active Publication Date: 2016-05-11
NORTHEASTERN UNIV LIAONING
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the defects existing in the existing coke oven gas hydrogen production technology, the present invention provides a device and method for producing hydrogen from coke oven raw gas, the purpose of which is to make full use of waste gases such as tar and low-carbon compounds in the coke oven raw gas and its own High-temperature waste heat, enhanced adsorption and efficient production of hydrogen
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 1
[0043] In this example, a certain coke oven with a coke output of 100t / h is taken as the object, and the raw coke oven gas produced per hour is 42000Nm 3 , the raw gas composition is shown in Table 1.
[0044]
[0045] (1) see figure 1 and figure 2 , add the mixture of adsorbent and catalyst or the composite catalyst to the hopper 4 from the feeding port 3, close the feeding port 3 after the feeding is completed, keep the temperature of the silo at 700~800°C, and control the mixture of the adsorbent and the catalyst by the control valve 5 or The speed at which the composite catalyst falls to the adsorbent regenerator is 20kg / s;
[0046] (2) Pass the flue gas from the coke oven combustion chamber with a temperature > 1000°C into the heating tube of the adsorbent regenerator 6, and when the mixture of the adsorbent and the catalyst or the composite catalyst is heated above 900°C, adjust the feeding device 7 Feed the mixture of adsorbent and catalyst or the composite catal...
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 belongs to the technical field of coke oven waste gas purification and waste heat recovery, and specifically relates to a device and method for producing hydrogen using coke oven waste gas. The device of the invention includes a reforming hydrogen production reactor, an adsorbent regenerator, a gas-solid separator, a silo, a steam reheater, a feeding device, a waste heat boiler, a gas storage cabinet and a pressure swing adsorption device; in the reforming hydrogen production In the reactor, high-temperature coke oven waste gas undergoes a reforming hydrogen production reaction with water steam under the action of a catalyst. The CO2 adsorbent reacts with the CO2 produced by the reforming reaction, and then enters the gas-solid separator for gas-solid separation and solid adsorption. The agent enters the adsorbent regenerator for regeneration, and CO2 is obtained at the same time. The hydrogen-rich gas passes through the waste heat boiler, drying tower and is finally stored in the H2 gas storage cabinet. The invention makes full use of the sensible heat of waste gas itself, realizes the resource utilization of waste gases such as tar and low-carbon compounds in waste gas, realizes the optimization and continuous high-efficiency production of hydrogen production and concentration, and can obtain by-products such as high-purity CO2 at the same time. .
Description
technical field [0001] The invention belongs to the technical field of coke oven raw gas purification and waste heat recovery, and in particular relates to a device and method for producing hydrogen by using coke oven raw gas. Background technique [0002] Energy is an indispensable guarantee for human survival, economic development and social activities. Although fossil fuels such as petroleum, coal and natural gas are still the main energy sources, due to their own non-renewability and environmental pressure, it is necessary to seek and develop clean energy. Renewable energy is getting a lot of attention. Hydrogen is considered to be an ideal energy source in the future because of its high calorific value and no pollution. At present, the hydrogen production methods with mature technology and large-scale production in the world are mainly water electrolysis hydrogen production and fossil fuel hydrogen production, but the former has the disadvantage of high energy consumpt...
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 Patents(China)
IPC IPC(8): C01B3/34C01B3/56
CPCY02P20/10Y02P20/129
Inventor 于庆波谢华清王坤秦勤
Owner NORTHEASTERN UNIV LIAONING