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Metal phosphorus compound for preparing biodiesel and method for preparing biodiesel using same

A metal phosphide and biodiesel technology, applied in chemical instruments and methods, physical/chemical process catalysts, biofuels, etc., can solve the problems of catalyst loss of activity and inability to maintain liquid state, and achieve high hydrotreating activity and long-lasting activity , highly active effect

Active Publication Date: 2014-03-05
SK INNOVATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, if the pour point is high, the problem arises that the feed cannot remain liquid at relatively low temperatures
However, during the preparation of HBD, since the vegetable oil used as feedstock does not contain sulfur but contains oxygen, the catalyst may be easily deactivated by reacting with oxygen

Method used

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  • Metal phosphorus compound for preparing biodiesel and method for preparing biodiesel using same
  • Metal phosphorus compound for preparing biodiesel and method for preparing biodiesel using same
  • Metal phosphorus compound for preparing biodiesel and method for preparing biodiesel using same

Examples

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preparation example Construction

[0060] The HBD production process may include a series of steps: pretreatment of the feedstock by hydrotreating, hydrodeoxygenation followed by separation of unreacted hydrogen, and cooling and separation of produced hydrocarbons. Thus, one or two steps can be added or omitted depending on the intended goal.

[0061] The method for preparing HBD using 100% vegetable oil as feedstock is as figure 1 shown, but the present invention is not limited thereto.

[0062] A process for the preparation of HBD using a mixture of vegetable oil and hydrocarbons as feedstock such as figure 2 shown. This method differs from the method using 100% vegetable oil in that a fractionator is provided for the separation of hydrocarbons.

[0063] A mixture of vegetable oil and 1% DMDS (as a feed) can be fed to the HBD reactor simultaneously with hydrogen to hydrotreat them. The reaction mixture thus obtained can be distilled using a stripper and fractionated according to boiling point, whereby on...

Embodiment 1

[0065] Example 1: MoP / ZrO 2 Catalyst preparation

[0066] Using ZrO with a diameter of 1mm 2 Support, a catalyst consisting of about 5% by weight Mo and about 3% by weight P was prepared.

[0067] Ammonium heptamolybdate tetrahydrate (hereinafter referred to as AHM) was used as a precursor of Mo, and ammonium phosphate (hereinafter referred to as AP) was used as a precursor of P.

[0068] AP and AHM were dissolved in distilled water and loaded on ZrO 2 support, dried at 150°C for 2 hours, and continued to calcine at 500°C for 2 hours, thus preparing MoP / ZrO 2 .

[0069] In addition to using AHM as a precursor of Mo, molybdenum acetate, molybdenum chloride, molybdenum hexacarbonyl, phosphomolybdic acid, molybdic acid, etc. may be used, but the present invention is not limited thereto. Also, precursors of P are not limited to AP, and examples thereof may include phosphorous acid, red phosphorus, yellow phosphorus, and the like.

[0070] Afterwards, 6 cc of the cataly...

Embodiment 2

[0072] Example 2: Ni 2 P / ZrO 2 Catalyst preparation

[0073] Using ZrO with a diameter of 1mm 2 Support, a catalyst consisting of about 6% by weight Ni and about 3% by weight P was prepared. Nickel nitrate (hereinafter referred to as NN) was used as a precursor of Ni, and ammonium phosphate (hereinafter referred to as AP) was used as a precursor of P.

[0074] Not only Ni metal can be provided in the form of NN, but also various precursors such as nickel acetate, nickel acetylacetonate, nickel chloride, nickel hydroxide, nickel oxalate, etc. can be used.

[0075] Ni was prepared by the following steps 2 P / ZrO 2 catalyst.

[0076] First, NN and AP were dissolved in distilled water and loaded on ZrO 2 On the support, it was dried at 150°C for 2 hours, and continued to be calcined at 500°C for 2 hours.

[0077] Carry out pretreatment and reaction under the same condition as embodiment 1, and analyze according to embodiment 1.

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Abstract

Disclosed is a catalyst including metal phosphide for preparation of biodiesel, and a method of preparing biodiesel from feedstock comprising vegetable oil through hydrotreating using the catalyst. When the catalyst including metal phosphide is used as a catalyst for preparation of biodiesel, preparation activity of hydrotreated biodiesel is high even without continuous supply of sulfiding agent, and hydrotreating and isomerization reactions occur at the same time, thus obtaining high-quality hydrotreated biodiesel having a low pour point.

Description

technical field [0001] The invention relates to a catalyst containing metal phosphide for preparing biodiesel, and a method for preparing biodiesel by using the catalyst. Background technique [0002] As oil prices continue to rise, the need to develop alternative energy sources and reduce greenhouse gases has been placed in front of people all over the world, so people are intensively studying the development of bio-energy. In addition, while the growth of domestic and foreign supplies of biodiesel depends on taxation and legislation around the world, the bioenergy-related market maintains a high growth rate of 8-12% per year. [0003] The technology of producing diesel fraction from biomass is typically represented by the production of FAME (fatty acid methyl ester). FAME is advantageous since it is an alternative energy source obtained from biomass and from a physical property point of view, FAME has a higher cetane number relative to diesel fractions obtained from conve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/18B01J27/19C10L1/08C10G3/00
CPCC10G2300/1018C10G2400/04C10G2300/1014Y02E50/13B01J27/1853B01J27/188C10G2300/1055C10G2300/1051B01J27/14B01J21/063B01J27/19C10G3/47B01J27/1856B01J21/066Y02P30/20B01J27/18C10G2300/1011Y02E50/10
Inventor 李相日金度完全熙仲朱尚俊柳在旭吴承勋高在玄
Owner SK INNOVATION CO LTD
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