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Method for producing biological clean fuel

A technology for clean fuels and production methods, applied in biofuels, fuels, liquid carbon-containing fuels, etc., can solve the problems of inability to save oil resources and high investment costs of engine equipment, achieve huge social and economic benefits, rich returns, and less equipment investment Effect

Inactive Publication Date: 2006-11-08
湖南天源生物质能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the existing several production methods of environment-friendly and clean fuels cannot save oil resources, the engine needs to be refitted in application, and the cost of equipment investment is high, and to provide a fuel oil pump that can save a lot of oil resources. , the production method of bio-clean fuel with low investment cost and no need to modify the engine in the application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: Take 100Kg of rapeseed oil deodorization distillate, 45kg of methanol, and 1.5kg of sulfuric acid, mix them into the esterification kettle, and carry out the low-carbon esterification reaction of the rapid pressurized reaction method. The pressure is 0.8MPa, and the pressure is maintained for 2 hours to obtain Mix fatty acid methyl esters; pump the obtained material into a water washing tank, wash and neutralize it to a pH value of 7; put the material into a cold analysis tank, gradually cool down and freeze to 2°C, and crystallize; filter the frozen liquid to obtain crude by-products For sterols, pump the filtrate into the methanol distillation tower, heat to 105°C for 1 hour, distill and recover excess methanol and water; pump the remaining liquid into the vacuum ester still, evacuate to 0.9KPa, and heat up to 220 °C, about 60kg of bio-clean fuel (fatty acid methyl ester) was obtained.

Embodiment 2

[0011] Example 2: Take 100kg of acidified oil, 130kg of methanol, and 1kg of sulfuric acid obtained by saponification, water washing, and acidification of peanut oil soapstock, and mix them into the esterification kettle to carry out the low-carbon esterification reaction of reflux esterification method, heat up to 80°C, and reflux the esterification Mixed fatty acid methyl esters were obtained by melting for 2 hours; the obtained materials were pumped into a water washing tank, washed and neutralized to a pH value of 7; the materials were placed in a cold analysis tank, and the temperature was gradually lowered to 1°C, and crystals were precipitated; filtered and frozen liquid to obtain crude sterol as a by-product; pump the filtrate into a methanol distillation tower, heat it to 80°C for 1 hour, and recover excess methanol and water by distillation; kPa, the temperature is raised to 200° C. to obtain about 82 kg of bio-clean fuel (fatty acid methyl ester).

Embodiment 3

[0012] Example 3: Take 100 kg of deodorized distillate in the soybean oil refining process, 350 kg of methanol, and 2 kg of sulfuric acid, and mix them into the esterification kettle to carry out the low-carbon esterification reaction of the reflux esterification method. The temperature is raised to 70 ° C, and the reflux esterification time is 2 hours, to obtain mixed fatty acid methyl esters; pump the resulting material into a washing tank, wash and neutralize to a pH value of 7; put the material into a cold analysis tank, gradually cool down to 1 °C, and crystals are precipitated; filter the frozen liquid , to obtain crude sterols as by-products; pump the filtrate into a methanol distillation tower, heat to 100°C, and process for 1 hour to recover excess methanol and water by distillation; pump the remaining liquid into a vacuum ester still, and vacuumize to 2.5 KPa, the temperature is raised to 200° C. to obtain about 70 kg of biological clean fuel (fatty acid methyl ester)...

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PUM

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Abstract

The production process of the clean biological fuel includes the following steps: low carbon esterification of vegetable oil leftover, low carbon alcohol and catalyst inside an esterifying reactor to obtain mixed low carbon fatty ester; water washing and neutralizing the product inside a water washing tank to pH 6-8; cold separation of the product inside a cold separating tank at 0-2 deg.c for separation crystal; filtering the frozen liquid to obtain side product coarse sterol; pumping the filtrate to low carbon alcohol distilling tower and heating to 80-110 deg.c for 0.8-1.2 hr for recovering excessive low carbon alcohol and water through distillation; pumping the residual liquid into ester distilling reactor, pumping to 0.4-10 KPa, heating to 200-260 deg.c and condensating to obtain the clean biological fuel. The process has low investment, and the produced fuel may be used to replace diesel oil to reduce environmental pollution and save petroleum resource.

Description

technical field [0001] The invention relates to a production method of liquid carbon-containing fuel mainly composed of carbon, hydrogen and oxygen, in particular to a production method of biological clean fuel. Background technique [0002] China is the world's second largest energy consumer, but its per capita energy resources are less than half of the world's average level, and oil accounts for only 1 / 10. The complex situation of international oil production and consumption has put great pressure on my country's oil imports. With the acceleration of my country's highway network construction, the automobile transportation industry has developed rapidly, but automobiles are a large consumer of petroleum resources. At present, the gasoline consumed by automobiles in my country accounts for about 90% of the total gasoline production in my country, and the diesel consumed accounts for about 90% of diesel output. 20% of. Moreover, the energy consumption index and exhaust emiss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02
CPCY02E50/10
Inventor 苏明华
Owner 湖南天源生物质能源有限公司