Catalyst used for pentanoate bio-fuel production, and method for inhibiting carbon deposit of catalyst

A biofuel and production method technology, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of high cost of catalyst precursors, complex catalyst preparation process, etc., to achieve the suppression of catalyst carbon deposition, low cost effect

Active Publication Date: 2016-12-21
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the current research focuses on the use of solid acid-supported noble metal catalysts to increase the yield of valeric acid or valeric acid esters, but the cost of such catalyst precursors is high and the catalyst preparation process is complicated.

Method used

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  • Catalyst used for pentanoate bio-fuel production, and method for inhibiting carbon deposit of catalyst
  • Catalyst used for pentanoate bio-fuel production, and method for inhibiting carbon deposit of catalyst
  • Catalyst used for pentanoate bio-fuel production, and method for inhibiting carbon deposit of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Ni / K / ZrO 2 Catalyst preparation: 1g ZrO 2 Add the powder into an aqueous solution of potassium nitrate with a concentration of about 0.006mol / L and stir for 24 hours, then dry it and calcinate it in air at 500°C for 5 hours. After grinding the obtained sample, add it to an aqueous solution of nickel nitrate with a concentration of about 0.17mol / L and stir for 24 hours Afterwards, it was dried and calcined at 500 °C in air for 5 h, and then in H 2 Reduction at 450°C for 4h.

Embodiment 2

[0040] Ru / K / NbOPO 4 Catalyst preparation: 1g NbOPO 4 The powder was added to an aqueous solution of 0.008mol / L potassium oxalate and stirred for 24 hours, dried, and calcined at 400°C in air for 5 hours. The obtained sample was ground and added to an aqueous solution of 0.05mol / L ruthenium chloride, stirred for 24 hours, and Dry and reduce in hydrogen at 300°C for 3h, the XRD spectrum of the obtained catalyst is shown in figure 1 .

Embodiment 3

[0042] Ru / Na / Nb 2 o 5 Catalyst preparation: 1g Nb 2 o 5 The powder was added to an aqueous solution of 0.01mol / L sodium chloride and stirred for 24 hours, dried, and calcined at 300°C in the air for 3 hours. After grinding, the obtained sample was added to an aqueous solution of 0.05mol / L ruthenium chloride, and stirred for 24 hours. Drying and reducing in hydrogen at 300°C for 3h, the XRD spectrum of the obtained catalyst is shown in figure 2 .

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Abstract

The invention provides a catalyst used for pentanoate bio-fuel production, and a method for inhibiting carbon deposit of the catalyst. The catalyst comprises an acidic carrier modified with alkali metal or alkali earth metal, and hydrogenated metal loaded on the carrier. The catalyst provided by the invention has the advantages of low cost, good stability, inhibition of carbon deposit in the pentanoate bio-fuel production process, guaranteeing of the continuous and highly-efficient proceeding of the catalysis reaction, and suitableness for industrial production of pentanoate.

Description

technical field [0001] The invention specifically relates to a catalyst applied to the production of valerate biofuels and a method for inhibiting catalyst carbon deposition in the production of valerate biofuels. Background technique [0002] Biomass and its derivative molecules are rich in functional groups, which makes them easy to polymerize at high temperature, thus causing rapid deactivation of catalysts. Therefore, the stability of catalysts is crucial in the conversion of biomass to chemicals and fuels. Levulinic acid is one of the most potential biomass platform compounds, which can be converted into valeric acid esters through a series of cascade reactions: including hydrogenation of levulinic acid to gamma valerolactone, and gamma valerolactone ring-opening to valerolactone. Acenoic acid, pentenoic acid is further hydrogenated to obtain valeric acid, and finally valeric acid is esterified to generate valeric acid ester. Valerate is a new type of cellulose-based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/648B01J23/78B01J27/185B01J27/195B01J29/46B01J38/02B01J38/10B01J29/90B01J27/28B01J23/96B01J23/94C10L1/02
CPCB01J23/6484B01J23/78B01J23/94B01J23/96B01J27/1853B01J27/195B01J27/285B01J29/46B01J29/90B01J38/02B01J38/10C10L1/02
Inventor 李福伟孙鹏高广夏春谷
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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