A method for producing hydrogen by using sludge thermochemical reaction
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A thermochemical reaction and sludge technology, applied in the field of environmental protection and comprehensive utilization of resources, can solve the problems of long time-consuming hydrogen production process and complicated operation process, and achieve the effects of easy acquisition, simple operation and short time.
Active Publication Date: 2019-11-22
苏州允清环境能源科技有限公司
View PDF4 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0008] (1) The hydrogen production process takes a long time;
[0009] (2) The actual operation process is complicated
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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] (1) Preparation of dry sludge
[0033] Take some activated sludge obtained from the secondary sedimentation tank, put it in a constant temperature blast drying oven at 105°C and dry it for 12 hours, then crush the dry sludge with a pulverizer, and pass through an 80-mesh sieve to obtain sieved dry sludge particles.
[0034] (2) Mix the reactants and build the reaction system
[0035] Take 1g of dry sludge and 3g of sodium hydroxide and place them in an alumina crucible, mechanically stir evenly, seal the alumina crucible in a high-temperature-resistant quartz tube, and then place it in the tube furnace 3, and follow the attached figure 1 Build a responsive system.
[0036] The structure of the reaction system is as follows: the high-purity nitrogen storage tank 1 is connected to the gas inlet of the tube furnace 3, and a mass flow controller 2 is arranged on the connecting pipeline. Mud and sodium hydroxide solid aluminum oxide porcelain boat, the outlet of the tube f...
Embodiment 2
[0042] (1) Preparation of dry sludge
[0043] Take some activated sludge obtained from the secondary sedimentation tank, put it in a constant temperature blast drying oven at 105°C and dry it for 12 hours, then crush the dry sludge with a pulverizer, and pass through an 80-mesh sieve to obtain sieved dry sludge particles.
[0044] (2) Mix the reactants and build the reaction system
[0045]Take 0.5g of dry sludge and 1.5g of sodium hydroxide and place them in an alumina crucible, stir them evenly, seal the alumina crucible in a high-temperature resistant quartz tube, and then place it in a tube furnace. figure 1 Build a responsive system.
[0046] (3) Purify the system and start the reaction
[0047] Feed nitrogen into the reaction system, the nitrogen mass flow is controlled by a mass flow controller, which is 70mL / min, until the nitrogen concentration of the display screen connected to the micro-gas chromatograph shows 100%, close the attached figure 1 Open the gas path l...
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
A method for preparing hydrogen from thermochemical reaction of sludge comprises the steps: putting crushed dry sludge and a sodium hydroxide solid into an alumina magnetic boat, and mechanically stirring to make the two components mixed evenly; putting the alumina magnetic boat into a tubular furnace, introducing nitrogen gas, making the tubular furnace full of nitrogen gas, and connecting an outlet of the tubular furnace with a condensing device; starting a reaction, continuously introducing nitrogen gas in the reaction process, and providing an inert pyrolysis atmosphere; setting a tubularfurnace heating program, staring up the tubular furnace, and maintaining for a certain time after the final temperature is reached; and collecting gas from the rear of the condensing device in the reaction process. The invention also provides a system for preparing hydrogen from the thermochemical reaction of the sludge, wherein the system comprises the tubular furnace; the outlet of the tubular furnace is connected with the condensing device; a gas outlet of the condensing device is connected with a gas collecting bag and a micro gas chromatograph analytical instrument with a micro gas chromatograph analytical result output display screen via a three-way valve. The method and system have the advantages of easily obtained raw materials, short hydrogen production process, simple operation and effective absorption of greenhouse gas under high temperature pyrolysis conditions.
Description
technical field [0001] The invention belongs to the technical field of environmental protection and resource comprehensive utilization, and relates to a method and system for producing hydrogen by using sludge thermochemical reaction, in particular to a method for producing hydrogen by using sludge to react with sodium hydroxide under pyrolysis conditions . Background technique [0002] With the rapid development of society and economy, and the continuous improvement of human living standards, more solid wastes are produced while using more resources. Sludge is a representative type of solid waste. Because sludge has a water content The characteristics of high rate, high organic matter content, and easy to rot and odor have become a major problem in the treatment and disposal of solid waste. [0003] Sludge treatment and disposal methods include landfill, composting and incineration. Although the landfill method is easy to operate, low in processing cost, and mature in tec...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more