Application of bulk unsupported nanocrystalline nickel material in the modification of pine nut shell pyrolysis bio-oil
A technology of nanocrystals and pine nut shells, which is applied in the production of fatty acids and chemical modification of fatty acids, etc., can solve the problems of zeolite catalysts such as easy carbon deposition, unstable catalytic performance, and low catalytic activity, achieving good results, mild catalytic reactions, and high catalytic activity. high effect
Inactive Publication Date: 2016-05-18
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology
[0003] At present, zeolite molecular sieve catalysts are mostly used in the catalytic modification of bio-oil. However, zeolite catalysts have problems such as easy carbon deposition and unstable catalytic performance, while other traditional catalysts also show low catalytic activity and poor catalytic effect in bio-oil modification. Shortcomings
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Embodiment Construction
[0017] Embodiments of the present invention are described in detail below.
[0018] Preparation of nanocrystalline nickel block: Weigh 280g of nickel sulfate, 27g of nickel chloride, 35g of boric acid, 0.1-1g of saccharin, dissolve in 1L of deionized water to obtain improved watts plating solution for later use; soak low carbon steel plate in ionized water for 3 hours , and then rinsed with 95% ethanol solution for 3 times, then immersed in the prepared warrs plating solution, at a reaction temperature of 50°C and a current density of 2.5A / dm 2 , under the condition of pH 5.0, electroplating by direct current electrodeposition for 12 hours, after the electroplating is completed, the coating is separated from the low-carbon steel plate by the method of integral stripping, and a nanocrystalline nickel block with a surface particle size of 16-89nm is obtained.
[0019] Bulk unsupported nanocrystalline nickel material was used as a catalyst for the catalytic modification of pine n...
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The invention discloses an application of a blocky non-loaded nanocrystalline nickel material in catalytic modification on pine nut shell pyrolysis bio-oil, and belongs to the technique of modification on bio-oil. A method that the blocky non-loaded nanocrystalline nickel material is used as a catalyst for catalytic modification on the pine nut shell pyrolysis bio-oil comprises the following steps: firstly, soaking a nanocrystalline nickel block in deionized water, subsequently washing with alcohol, rapidly drying by using a blower, putting the nanocrystalline nickel block into a catalysis bed, heating, and meanwhile pumping the pine nut shell pyrolysis bio-oil into the catalysis bed, wherein the bio-oil is gasified after being heated; feeding the bio-oil into a condensation device for condensation and collection along with a carrier gas by virtue of the catalysis bed, thereby obtaining the modified bio-oil of the pine nut shell pyrolysis bio-oil. The invention provides a novel application of the nanocrystalline nickel material in the technical field of bio-oil, the used nanocrystalline nickel material catalyst is easy to obtain, convenient to use, gentle in catalysis reaction, stable in property, long-lasting, high in catalysis activity and good in bio-oil modification effect.
Description
technical field [0001] The invention belongs to bio-oil modification technology, and mainly relates to an application and method for catalytic modification of pine nut shell pyrolysis bio-oil by using block-shaped unloaded nano-crystalline nickel material. Background technique [0002] Bio-oil is one of the important forms of utilization of biomass resources, because it is easy to transport, good for storage and high energy density, so it has good development potential. However, its own high oxygen content, high viscosity and poor stability have affected its further utilization. The main physical characteristics of bio-oil: high water content (up to 40% on average), low pH value, wide range of viscosity changes, and the oil is extremely unstable due to high oxygen content. At present, modification treatment is one of the more effective ways to improve the quality of bio-oil, and hydrodeoxygenation has also become the main goal of bio-oil modification. [0003] At this stag...
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IPC IPC(8): C11C3/00
Inventor 秦丽元蒋恩臣孙焱李爽
Owner NORTHEAST AGRICULTURAL UNIVERSITY