Only catalyze and decompose hydrogen sulfide and make hydrogen and study and obtain progress
Author: So sincere
It is reported that was finished by the petrochemistry research institute of academy of sciences of Heilongjiang Province " Make hydrogen catalyst to design with craft research with solar energy photodissociation hydrogen sulfide " The project, confirm through the expert who is organized by scientific and technological drawing room of Heilongjiang Province recently.
Hydrogen sulfide is a kind of stench, virulent acid gas with corrosivity, petroleum refine and the intersection of natural gas and processing and other chemistry formate by product that produce in the craft, the hydrogen discharge of national sulfide can be up to 8 million - 10 million tons per year. The treatment to hydrogen waste gas of sulfide of our country adopt Claus crafts more, oxidize the hydrogen part of sulfide into water and sulfur, hydrogen among them has not been recycled. Hydrogen can be most hopeful in the energy which substitute the fossil type in the future, the industrial hydrogen is reformed through the steam by light hydrocarbon, coal, natural gas and methanol,etc. or electrolyzes water and produces at present, with high costs, the price is expensive, it is difficult to be regarded as the fuel and used extensively.
Only catalyze and decompose the reaction condition which is made hydrogen craft to relax with hydrogen sulfide of photochemistry, can utilize abundant solar energy cheap, not merely can realize the transformation of the solar energy is utilized, and can reduce the production cost, have higher research value and application prospect.
Seminar that the researcher of petrochemistry research institute of academy of sciences of Heilongjiang Province guided white snow capped peak, in scientifical fund for outstanding people and country of Heilongjiang Province " 863" Under the support of the project, to problems such as the environmental pollution existing in the oil plant and industrial production process of natural gas and wasteful use of resources of hydrogen,etc., only catalyze and decompose hydrogen sulfide and make hydrogen catalyst to design carrying on the research of the deep system with the craft with photochemistry.
The seminar adopts the deposition method altogether, prepare serial CdxZn1-xS of controllable energy firmly and dissolve attitude type mere catalyst, Cd0.7Zn0.3S only catalyzes and makes hydrogen speed to reach 11.1mmol/ (g h) ; Adopt, impregnate - roast and water heat synthetic method, prepare CdS/S, N-TiO2, CdS/C-TiO2 and CdS/N-TiO2 compound smooth catalyst, the visible light catalyzes and makes hydrogen performance and is higher than not mixing modified 2 times; Adopt ion exchange - deposit CdS/HY and CdS/Al-MCM-41 supporting mere catalyst that France prepared, the nanometer CdS group of forming the stable, molecule size forms a cluster, can raise the electric charge and separate efficiency and only catalyze and produce hydrogen efficiency, it is 5-6 times that of single component CdS. Ultraviolet ray (characteristic wavelength is 253.7nm) Can produce photochemistry and decompose the cooperative effect with the mere catalysis promoter to make hydrogen to decompose hydrogen sulfide to catalyze, can reach 4.04mL/W h while decomposing and producing hydrogen speed, is far higher than the visible light and catalyze and make hydrogen. Analyze the means, has signified structure and light chemical property of catalyst through XRD, TG, IR, XPS, SPS, ICP, SEM and TEM,etc., explain that raises and catalyzes and decomposes the mechanism of making hydrogen efficiency of hydrogen sulfide all, further employ this technology to offer the basis.
At present, has already applied for 4 national patents for invention in the research, one among them has already been authorized. (so sincere)
Only catalyze and decompose hydrogen sulfide and make hydrogen and study and obtain progress
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