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Process for preparing diesel oil with polywater as raw material

A technology of diesel and raw materials, which is applied in the field of diesel production, can solve the problems of polluting the ground, polluting the atmosphere, and no treatment, and achieves the effects of reducing pollution, increasing income, and less equipment

Inactive Publication Date: 2006-09-27
李太模
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Problems solved by technology

[0002] Petroleum resources are non-renewable, and the demand for oil at home and abroad is increasing day by day, but 20% to 70% of the residual oil in the sandstone layer under the oil production well has not been exploited. In order to increase the output of crude oil and improve the recovery rate, domestic and foreign A new process is commonly used to inject polyacrylamide into the ground, and polyacrylamide undergoes molecular fission under high temperature and high pressure underground, thereby increasing the recovery of crude oil; part of the fissioned polyacrylamide is emulsified and partly carbonized , in the process of oil recovery, in addition to oil, there are nearly 20% of the extracts in the oil well containing polyacrylamide wastewater, which is an emulsion, also known as polyacrylamide containing polyacrylamide It is difficult to separate from waste water, so it is abandoned without treatment or recycling. Its quantity is very large, which seriously pollutes the air and the ground, and accumulates over time. Petroleum resources are abandoned and cannot be fully utilized, resulting in huge waste

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  • Process for preparing diesel oil with polywater as raw material

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Embodiment Construction

[0007] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0008] This production process is a discontinuous production process, which is carried out intermittently and operated under normal pressure.

[0009] The waste water containing polyacrylamide separated in the oil extraction process, that is, the polyacrylamide mentioned in the present invention, is sent to the recovery pool, and then pumped into the dehydrator 1, and the cold source provided by the refrigerator 2, the polypropylene The amide is separated by freezing, the temperature of the refrigerant is controlled at -5°C to -10°C, and the time is 8 to 24 hours under normal pressure. Due to the small specific gravity of polyacrylamide, the suspended polyacrylamide droplets are squeezed out during the freezing process. The upper layer contains a large amount of polyacrylamide, the ice layer is soft and easy to extract, and the water ...

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Abstract

The invention discloses a diesel producing method based on raw material with polywater, which comprises the following steps: fridging to dewater through refractor; heating to dewater; catalyzing to crack at 320-380 deg.c in the autoclave; condensing the distillate; cooling; proceeding non-continually at atmospheric pressure; adapting Si-Na-Mg catalyst. The invention can transfer water into useful material, which reduces the environmental pollution and cost.

Description

technical field [0001] The invention relates to a production method for preparing diesel oil from waste water in oil extraction operations. Background technique [0002] Petroleum resources are non-renewable, and the demand for oil at home and abroad is increasing day by day, but 20% to 70% of the residual oil in the sandstone layer under the oil production well has not been exploited. In order to increase the output of crude oil and improve the recovery rate, domestic and foreign A new process is commonly used to inject polyacrylamide into the ground, and polyacrylamide undergoes molecular fission under high temperature and high pressure underground, thereby increasing the recovery of crude oil; part of the fissioned polyacrylamide is emulsified and partly carbonized , in the process of oil recovery, in addition to oil, there are nearly 20% of the extracts in the oil well containing polyacrylamide wastewater, which is an emulsion, also known as p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10C10L1/00
CPCY02W30/62
Inventor 李太模
Owner 李太模
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