Catalyst and preparation method for preparing biodiesel and preparation process of biodiesel

A technology of biodiesel and preparation process, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, biofuels, etc., which can solve the unfavorable biodiesel market competitiveness, increase the difficulty and cost of equipment manufacturing, increase the production cost of biodiesel, etc. problems, to achieve the effect of reducing equipment manufacturing cost and operation difficulty, saving equipment manufacturing cost, and improving price advantage

Active Publication Date: 2017-06-13
KUSN INNOVATION INST OF NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reaction conditions used in this process are relatively harsh, and the high reaction pressure has special manufacturing requirements for the reaction device, which increases the difficulty and cost of equipment manufacturing, and correspondingly increases the risk of operation. In addition, additional equipment manufacturing The cost will undoubtedly increase the production cost of biodiesel, which is not conducive to improving the market competitiveness of biodiesel

Method used

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  • Catalyst and preparation method for preparing biodiesel and preparation process of biodiesel
  • Catalyst and preparation method for preparing biodiesel and preparation process of biodiesel

Examples

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Effect test

preparation example Construction

[0040] like figure 1 A biodiesel preparation device shown includes a sampling system A, a reaction system B, a methanol flash system C, a methanol recovery system D, a glycerin separation system E, a fatty acid methyl ester rectification system F and related control systems;

[0041] Sampling system A: includes gas sampling pipeline and liquid sampling pipeline, and the liquid sampling pipeline is divided into oil raw material sampling pipeline and reaction low-carbon alcohol sampling pipeline. The liquid sampling pipeline is connected to the high-pressure metering pumps 1 and 2 through pipelines, and the gas sampling pipeline controls the flow through the rotameter 5 and the electromagnetic flowmeter 6 . And a heat exchanger 9 is set between the sampling system and the reaction system, and is connected to the preheater 11 in the reaction system B through a pipeline to recover heat from the hot material at the lower end of the reactor for heating the upper end of the reactor. ...

Embodiment 1

[0063] Adopt the preparation device of above-mentioned biodiesel and corresponding preparation method to carry out following operations:

[0064] 1. Press ZrO 2 88.47%, Al 2 o 3 8.22%, TiO 2 3.31% weight ratio weighs ZrO 2 、Al 2 o 3 、TiO 2 powder, put it into a ball mill for 24 hours, add appropriate amount of NaCl, NaHCO 3 Mix the powder and silica sol thoroughly, granulate and shape, dry at 120°C for 12 hours, transfer to a muffle furnace for roasting, heat at 500°C for 1 hour, heat up to 1550°C, hold for 2 hours, and cool to obtain a solid catalyst. The prepared solid catalyst is loaded into the tubular reactor.

[0065] 2. Pump low-carbon alcohol and vegetable oil into the preheater according to the volume ratio of 1:1 through a high-pressure metering pump, preheat to 200°C, and the preheated material enters a static mixer and mixes thoroughly. The vegetable oil is glabra Oil, low carbon alcohol is methanol.

[0066] 3. The mixed material enters the constant t...

Embodiment 2

[0070] Adopt the preparation device of above-mentioned biodiesel and corresponding preparation method to carry out following operations:

[0071] 1. Press ZrO 2 85.38%, Al 2 o 3 9.72% and TiO 2 2.68% weighed ZrO 2 、Al 2 o 3 、TiO 2 Powder, after ball milling for 36 hours, add appropriate amount of NaCl, NaHCO 3 Mix the powder and silica sol thoroughly, granulate and shape, dry at 105°C for 24 hours, transfer to a muffle furnace for roasting, heat at 500°C for 2 hours, heat up to 1800°C, hold for 4 hours, and cool to obtain a solid catalyst. The prepared solid catalyst is loaded into the tubular reactor.

[0072] 2. Pump low-carbon alcohol and vegetable oil into the preheater according to the volume ratio of 5:1 through a high-pressure metering pump, preheat to 230 ° C, and the preheated material enters a static mixer and mixes thoroughly. The vegetable oil is glabra oil , the low carbon alcohol is methanol.

[0073] 3. The mixed material enters the constant temperatur...

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Abstract

The invention discloses a catalyst for preparing biodiesel and a preparation method of the catalyst as well as a novel process applied to preparation of the biodiesel. The catalyst comprises the following components by weight percent: 85.38%-91.42% of ZrO2, 6.75%-9.72% of Al2O3 and 2.68%-4.16% of TiO2. The solid catalyst is used for catalyzing an ester exchange reaction to produce the biodiesel, the reaction time is short, the conversion rate is high, various raw materials can be widely used, the ester exchange reaction can be carried out in a methanol subcritical state to produce the biodiesel, the catalyst is automatically separated from a product after the reaction is finished, and the rinsing operation is not required, thus the clean production of the biodiesel is realized and the production cost of the biodiesel is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of chemical preparation, in particular to a catalyst for preparing biodiesel, and a production process and a production device for preparing biodiesel using the catalyst. Background technique [0002] With the deepening of the energy crisis, the search for new alternative clean energy is gradually becoming the research focus of countries all over the world. Due to its high cetane number, good lubricating properties, low sulfur content, and no aromatic hydrocarbons that pollute the environment, biodiesel has become the focus of research on environmentally friendly and renewable alternative energy sources around the world. The main components of biodiesel are long-chain saturated or unsaturated oxygen-containing organic acid low-carbon alcohol esters, and the carbon chain length is mostly in C 18 ~C 22 It is very close to diesel and very similar in nature, so initially people defined renewable fatty acid met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06C11C3/10C10L1/02
CPCY02E50/10
Inventor 刘士涛邓芸顾军邹志刚
Owner KUSN INNOVATION INST OF NANJING UNIV
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