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Waste animal and vegetable grease fiber membrane water-washing desalination method and process system thereof

A technology of animal and vegetable oils and process systems, which is applied in the field of waste animal and vegetable oils and fats fiber membrane water washing desalination method and its process system, which can solve problems such as coking and corrosion, achieve the effect of reducing consumption, reducing consumption, and ensuring desalination

Pending Publication Date: 2020-01-10
WUHAN JINZHONG PETROCHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned technical shortcomings existing in the existing waste animal and vegetable oil pretreatment process, the purpose of the present invention is to provide a method and a process system for water elution of waste animal and vegetable oil fiber membranes, using at least one level of fiber membrane water elution to salt, and assisting in adding broken Emulsions, demetallizers, and dechlorination agents can achieve the purpose of pretreatment of waste animal and vegetable oils, and can solve the hazards caused by harmful impurities such as salt and chlorine to subsequent processing devices, avoid equipment and pipeline coking and corrosion; extend the operating cycle of the device, reduce Device energy consumption

Method used

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  • Waste animal and vegetable grease fiber membrane water-washing desalination method and process system thereof

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Effect test

Embodiment 1

[0070] The raw materials of waste animal and vegetable oils from the tank area are filtered through three stages. The pre-filter adopts a filter with a filtration precision of 20 mesh; the filter of activated carbon or blue carbon adopts a filter with a filtration precision of 30 mesh; The precision reaches 25μm particles and the removal rate is over 98%. The operating temperature is 70°C and the operating pressure is 1.1MPa.

[0071] The fiber membrane is a hydrophilic fiber membrane, the washing water is deoxygenated water, and the volume ratio of the washing water entering the fiber membrane contactor to the waste animal and vegetable oil raw materials entering the fiber membrane contactor is 0.3. The operating temperature of waste animal and vegetable oil entering the first-stage fiber membrane contactor 311 is 120°C, and the operating pressure is 0.7MPa; the operating temperature of washing water entering the first-stage washing fiber membrane contactor 311 is 120°C, and ...

Embodiment 2

[0079] The raw materials of waste animal and vegetable oils from the tank area are filtered through three stages. The pre-filter adopts a filter with a filtration precision of 20 mesh; the filter of activated carbon or blue carbon adopts a filter with a filtration precision of 30 mesh; The precision reaches 25μm particles and the removal rate is over 98%. The operating temperature is 70°C and the operating pressure is 1.0MPa.

[0080] The fiber membrane is a hydrophilic fiber membrane, the washing water is deoxygenated water, and the volume ratio of the amount of washing water entering the fiber membrane contactor to the waste animal and vegetable oil raw materials entering the fiber membrane contactor is 0.1. The operating temperature of waste animal and vegetable oil entering the first-stage fiber membrane contactor 311 is 120°C, and the operating pressure is 0.7MPa; the operating temperature of washing water entering the first-stage washing fiber membrane contactor 311 is 1...

Embodiment 3

[0088] The raw materials of waste animal and vegetable oils from the tank area are filtered through three stages. The pre-filter adopts a filter with a filtration precision of 20 mesh; the filter of activated carbon or blue carbon adopts a filter with a filtration precision of 30 mesh; The precision reaches 25μm particles and the removal rate is over 98%. The operating temperature is 70°C and the operating pressure is 1.0MPa.

[0089]The fiber membrane is a hydrophilic fiber membrane, the washing water is deoxygenated water, and the volume ratio of the washing water entering the fiber membrane contactor to the waste animal and vegetable oil raw materials entering the fiber membrane contactor is 0.2. The operating temperature of waste animal and vegetable oil entering the first-stage fiber membrane contactor 311 is 120°C, and the operating pressure is 0.7MPa; the operating temperature of washing water entering the first-stage washing fiber membrane contactor 311 is 120°C, and t...

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Abstract

The invention discloses a waste animal and vegetable grease fiber membrane water-washing desalination method and a process system thereof. The waste animal and vegetable grease fiber membrane water-washing desalination method comprises the following steps: filtering and heating waste animal and plant oil, deliverying the waste animal and plant oil, a demetalization agent, a dechlorinating agent and a demulsifying agent with washing water through at least one stage of fibrous membrane for water washing, and desalting the washed waste animal and plant oil. The method is capable of avoiding the harm of salts, chlorine and other harmful impurities on subsequent processing devices and avoiding coking and corrosion on equipment and pipelines, prolonging device operation period, and reducing device energy consumption.

Description

technical field [0001] The invention belongs to the technical field of biomass oil pretreatment technology, in particular to a pretreatment method for producing biological liquid fuel from waste animal and vegetable oil (including waste catering oil), specifically a method for washing and desalting waste animal and vegetable oil fiber membrane with water and its crafting system. Background technique [0002] Biological liquid fuel is made from oil crops, wild oil plants, engineering microalgae and other aquatic vegetable oils, as well as animal oils, catering waste oil, etc. It has low sulfur content, does not contain aromatic hydrocarbons, and is environmentally friendly. It is comparable to petroleum diesel Compared with reducing particulate matter, carbon dioxide, and sulfur dioxide emissions, it is a clean energy source, and has the advantages of renewability, rich raw materials, substitutability, and low cost. Facing the dual pressures of rapid economic development and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00
CPCC11B3/001C11B3/008C11B3/006
Inventor 孙秋荣易金华程才智柳杨华赵媛媛王亚东
Owner WUHAN JINZHONG PETROCHEM ENG
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