Method for preparing biofuel by taking elaeagnus angustifolia kernels as raw material and obtained biofuel

A technology of biofuel and jujube seed, which is applied in the preparation of liquid hydrocarbon mixture, petroleum industry, hydrotreating process, etc., can solve the problems of large workload, complexity, poor industrial realization, etc., and achieves low production cost and high product quality. The effect of high oil and time saving process

Active Publication Date: 2021-07-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] From the above, it can be seen that in the prior art, the process of preparing biofuels with the seeds of Elaeagnus eraeaceae as raw materials is relatively complicated, and there are multiple steps such as impurity removal and desolventization in the middle, especially the desolventization step, which has a large workload and is industrially feasible. poor

Method used

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  • Method for preparing biofuel by taking elaeagnus angustifolia kernels as raw material and obtained biofuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] After drying the jujube, the pulverizer was pulverized into a small powder, spare.

[0039] Take 100 g of the sand jujube powder, 300 g of n-pentane, the temperature is maintained at about 30 ° C for 3 h; filtration, 0.5 g of 10% phosphate and 4g deionized water, the temperature is 50 ° C, the stirring time is 45min Pour the separatory funnel, stand the bottom layer of water, to obtain the mixed oil.

[0040] The purified mixed oil was catalytically hydrogenated with a Ni / Mo catalyst using a Ni / Mo catalyst, a reaction temperature of 330 ° C, a reaction pressure of 4 MPa, a hydrogen ratio of 800: 1, a liquid 3025 g, distillation to obtain carbon nine or more alkane biofuel 25g .

Embodiment 2

[0042] Take 100 g of sand jujube powder, 200 g of n-octane, the temperature is maintained at a temperature of about 120 ° C for 1 h; filter, 0.3 g of 10% phosphate and 3 g of deionized water, the temperature is 85 ° C, stirred after 15min Separation funnel, deposition separation of the underlying water liquid, resulting in a layer of purified mixed oil.

[0043]The Ni / W catalyst was used to catalyze hydrogenation on the fixed bed device, the reaction temperature was 370 ° C, the reaction pressure was 4 MPa, the hydrogen ratio was 800: 1, the liquid received 235 g, and the distillation was cut to obtain carbon nine alkane biofuel 35g. .

Embodiment 3

[0045] Take 100 g of the sand jujube powder, 500 g of n-hexane is added, and the temperature remains at 60 ° C for 1.5 h; filtration, 10% phosphoric acid and 6 g of deionized water in the filtrate, the temperature is 70 ° C, stirred after 25min Separation funnel, deposition separation of the underlying water liquid, resulting in a layer of purified mixed oil.

[0046] The CO / MO catalyst was used to catalyze hydrogenation on the fixed bed device, the reaction temperature was 350 ° C, the reaction pressure was 4 MPa, the hydrogen ratio was 800: 1, the liquid received by 638 g, and the distillation was cut to obtain carbon nine alkane biofuel 38g. .

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Abstract

The invention provides a method for preparing biofuel by taking elaeagnus angustifolia kernels as a raw material. The method comprises the following steps: step 1, drying and crushing elaeagnus angustifolia kernels, and adding the crushed kernels into a solvent for dipping to obtain extracted mixed oil; 2, mixing the extracted mixed oil with acid liquor, and performing layering to obtain refined mixed oil; and 3, under the action of a hydrogenation catalyst, carrying out catalytic hydrogenation on the refined mixed oil to generate the biofuel. The biofuel prepared by adopting the method is good in quality, high in calorific value and almost free of aromatic hydrocarbon, olefin, sulfur, nitrogen and the like, the production process flow is simple and easy to implement, the production cost is low, and large-scale production is facilitated.

Description

Technical field [0001] The present invention belongs to the field of biofuel technology, and in particular, a method of preparing biofuels based on Sajube Reni is a raw material. Background technique [0002] With the development of the world economy, petroleum resource consumption has increased, and energy shortages have become a major issue affecting the sustainable development of human society. Bioenergy is rich in reserves, and has an environmentally friendly and renewable feature, while meeting future social energy demand, it is also in line with the concept of sustainable scientific development and circular economy, so how to develop and use bioenergy has become today's energy strategy. important part. [0003] Biofuel produced by non-grain grease is the composition and petroleum-based fuel, and the performance is very close. No need to replace the engine and fuel system, and can be directly supplied to the engine. Compared with petroleum-based fuel, biofuels can reduce the...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10G1/04C10G67/02
CPCC10G1/04C10G1/002C10G67/02C10G2300/1011C10G2300/1014Y02E50/10
Inventor 何玉莲姜伟贾云刚金书含赵仲阳李英辉王伟众邓旭亮张全国王东军
Owner PETROCHINA CO LTD
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