Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing hydrogen from hydrocarbon gas without carbon emission

A hydrocarbon gas and carbon emission technology, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve the problems of aggravating carbon emissions, inconsistent environmental positioning of hydrogen and hydrogen energy, carbon emissions, etc., to eliminate carbon emissions, increase Overall economic effect

Inactive Publication Date: 2019-10-18
深圳市中科纳米科技有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing large-scale hydrogen production processes mainly use hydrocarbons such as methane, ethane, propane, etc. for high-temperature cracking to produce carbon monoxide and hydrogen, or use methanol and water to produce hydrogen and carbon dioxide, but these processes will produce carbon-containing gases. Including carbon dioxide and carbon monoxide, where carbon monoxide is used as gas, the emission product is mainly carbon dioxide, which means that the current hydrogen production process will cause carbon emissions from the entire industrial chain, which means that large-scale use of hydrogen and hydrogen energy will increase carbon emissions
This is inconsistent with the environmental protection positioning of hydrogen and hydrogen energy

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
  • Method for producing hydrogen from hydrocarbon gas without carbon emission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for producing hydrogen from hydrocarbon gases without carbon emissions, comprising the following steps:

[0022] In the reactor in an oxygen-free environment, gaseous hydrogen sources such as methane, ethane, propane (cyclopropane), butane (cyclobutane) ethylene, propylene, butene, acetylene, Proyne, 1-butyne, add catalyst at the same time, catalyst (nano-scale iron, nickel, cobalt, copper, particle size range 10~100nm) addition amount is 0.1kg~1kg, react at high temperature 600~900℃ for 2h~ 20h, the hydrocarbon gas is decomposed into hydrogen and carbon elements, and then under the action of the catalyst, the carbon elements solidify and form nano-scale carbon materials in solid form. As the reaction proceeds, the hydrogen source is continuously consumed to generate carbon nanomaterials solid and Hydrogen, the proportion of hydrogen in the gas discharged from the reactor is about 78% to 95%. The discharged gas is purified and separated to obtain high-purity hy...

Embodiment 2

[0024] A method for producing hydrogen from hydrocarbon gases without carbon emissions, comprising the following steps:

[0025] In a reactor in an oxygen-free environment, hydrogen sources (alkanes, cycloalkanes, alkenes, alkynes or aromatics) are liquid hydrocarbons at room temperature such as: pentane (cyclopentane), hexane (cyclohexane alkane), heptane (cycloheptane), octane (cyclooctane), pentene, hexene, heptene, 1-pentyne, 1-hexyne, 1-heptyne, benzene, toluene, xylene, Ethylbenzene, propylbenzene, styrene, phenylacetylene, tetrahydronaphthalene, and anthracene are heated at a temperature of 100-600 degrees Celsius to convert the liquid hydrogen source into a gaseous state, and then pass it into another container at a rate of 5-50 L / h. In the catalyst reactor, the catalyst (nano-scale iron, nickel, cobalt, copper, particle size range of 10-100nm) is added in an amount of 0.1kg-1kg, and it is gasified by reacting at a high temperature of 600-900°C for 2h-20h. The hydroge...

Embodiment 3

[0027] A method for producing hydrogen from hydrocarbon gases without carbon emissions, comprising the following steps:

[0028] In a reactor in an oxygen-free environment, use hydrogen sources (alkanes, cycloalkanes, alkenes, alkynes, or aromatics) that are gas-solid hydrocarbons at room temperature, such as octadecane, nonadecane, and cyclododecane , nonadecene, eicosene, hexamethylbenzene, biphenyl, naphthalene, etc. are heated at a temperature of 100-400 degrees Celsius to convert the liquid hydrogen source into a liquid state, and then continue to heat to 400-600 degrees Celsius to make the liquefied solid The hydrogen source is transformed into a gaseous state, and then passed into another reactor equipped with a catalyst at a rate of 5-50L / h, and the catalyst (nano-scale iron, nickel, cobalt, copper, particle size range of 10-100nm) The amount is 0.1kg-1kg, and the gaseous hydrogen source is decomposed into hydrogen and carbon elements by reacting at a high temperature ...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for producing hydrogen from hydrocarbon gas without carbon emission. The method for producing hydrogen from hydrocarbon gas without carbon emission specifically comprises the steps that an alkane, a cycloalkane, an olefin, and an alkyne or an aromatic hydrocarbon are used as a hydrogen source, in the preparation technology, the carbon elementis fixed as nanostructured carbon materialby catalyzing (nanoscale iron, nickel, cobalt, andcopper), so that in the entire industrial chain for hydrogen production and use, no carbon isemitted, and meanwhile high purity hydrogen is obtained. According to the technology, all carbon elements are substantially recoveredin the process of hydrogen production, so that the entire industrial chain has substantially no carbon emissions. The resulting nanoscale carbon materialsare carbon nanotubes (CNTs) or carbon black. Cured nanoscale carbon materials as commodities are far greater in market value than carbon monoxide or carbon dioxide, that is, the overall economic benefits of the industrial chain are also increased on the premise of eliminating carbon emissions.

Description

technical field [0001] The invention relates to a method for producing hydrogen without carbon emission, in particular to a method for producing hydrogen without carbon emission from hydrocarbon gas. Background technique [0002] Hydrogen is not only a clean and efficient energy source, but also an important basic raw material in the petrochemical synthesis process, with a wide range of uses. It can also be used in electronics industry, metallurgical industry, food processing, fine chemical synthesis, aerospace industry and other fields, especially in recent years with the development of hydrogen fuel cells, the demand for hydrogen will continue to rise. However, the existing large-scale hydrogen production processes mainly use hydrocarbons such as methane, ethane, propane, etc. for high-temperature cracking to produce carbon monoxide and hydrogen, or use methanol and water to produce hydrogen and carbon dioxide, but these processes will produce carbon-containing gases. Inc...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/26C01B32/162C09C1/48
CPCC01B3/26C01B32/162C09C1/48
Inventor 曲源李彤宇李蕾蕾李镇文
Owner 深圳市中科纳米科技有限公司