Pyrolytic process and device capable of directly transforming straws into petrol and diesel

A direct and pyrolysis technology, applied in the petroleum industry, the preparation of liquid hydrocarbon mixtures, special forms of dry distillation, etc., can solve the problems of inability to directly use internal combustion engines and various transportation vehicles, low calorific value of bio-oil, easy polymerization and coking, etc. To achieve the effect of increasing the pyrolysis rate and production capacity, reducing the pyrolysis temperature, and increasing the content of hydrocarbons

Inactive Publication Date: 2011-04-27
HENAN ZHONGBU NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, bio-oil has the disadvantages of low calorific value, high viscosity, containing carbon powder and other solid particles, and is easy to polymerize and coke at high te...

Method used

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  • Pyrolytic process and device capable of directly transforming straws into petrol and diesel

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The crop stalks are dried by a drum dryer so that the moisture content of the crop stalks is 0.05wt%, and the crop stalks are crushed into particles with a particle size of 10 mesh with a hammer crusher, and then mixed with 7wt% of waste plastics and 0.1wt% of Pt / SiO 2 -Ni catalysts are mixed and input into the pyrolysis reactor 2. Start the stirrer at a speed of 2r / min. Diesel oil was burned in the burner 8, and the pyrolysis reactor was heated for 15 minutes. The supply of diesel oil to the burner 8 is stopped, and the by-products (biomass charcoal powder and non-condensable combustible gas) of crop straw pyrolysis are introduced into the burner 8 to burn to supply pyrolysis heat. The crop straw is thermally decomposed into pyrolysis steam, biochar powder and non-condensable combustible gas in the pyrolysis reactor 2, and the voltage regulator 9 and the feedforward control system are adjusted to control the vacuum degree of the pyrolysis reactor 2 at 60kpa. The te...

Embodiment 2

[0035] The crop stalks are dried by a drum dryer so that the moisture content of the crop stalks is 0.02wt%, and the crop stalks are crushed into 8-mesh particles with a hammer crusher, and then mixed with 10wt% waste plastics and 0.2wt% SiO 2 -Fe 2 o 3 The catalysts are mixed and input into the pyrolysis reactor 2. Start the stirrer at a speed of 3r / min. Diesel oil was burned in the burner 8, and the pyrolysis reactor was heated for 220 minutes. The supply of diesel oil to the burner 8 is stopped, and the by-products (biomass charcoal powder and non-condensable combustible gas) of crop straw pyrolysis are introduced into the burner 8 to burn to supply pyrolysis heat. The crop straw is thermally decomposed into pyrolysis steam, biochar powder and non-condensable combustible gas in the pyrolysis reactor 2, and the voltage regulator 9 and the feedforward control system are adjusted to control the vacuum degree of the pyrolysis reactor 2 at 70kpa. The temperature is controlle...

Embodiment 3

[0037] The crop stalks are dried by a drum dryer so that the moisture content of the crop stalks is 0.03wt%, and the crop stalks are broken into particles with a particle size of 15 mesh with a hammer crusher, and then mixed with 15wt% waste plastics, 0.5wt% Fe / SiO 2 -MgO catalysts are mixed and input into the pyrolysis reactor 2. Start the stirrer at a speed of 4r / min. Diesel oil was burned in the burner 8, and the pyrolysis reactor was heated for 220 minutes. The supply of diesel oil to the burner 8 is stopped, and the by-products (biomass charcoal powder and non-condensable combustible gas) of crop straw pyrolysis are introduced into the burner 8 to burn to supply pyrolysis heat. The crop straw is thermally decomposed into pyrolysis steam, biochar powder and non-condensable combustible gas in the pyrolysis reactor 2, and the voltage regulator 9 and the feedforward control system are adjusted to control the vacuum degree of the pyrolysis reactor 2 at 80kpa. The temperatu...

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Abstract

The invention relates to pyrolytic process and device capable of directly transforming straws into petrol and diesel. The core process of the invention adopts a certain proportion of waste plastics as an additive to assist the pyrolysis of the crop straws, which efficiently reduces the pyrolytic temperature, and enhances the quality of pyrolysis oil (same with the quality of petrol and diesel). The invention relates to a novel pyrolytic system which adopts a self-heating efficient air-solid separation and direct condensation technology, can completely transform biomass materials into the high-quality biomass petrol and diesel (the productivity of which is about 50%). The biomass petrol and the biomass diesel can be directly used on a combustion motor for burning, and can efficiently reduce the motor vehicle exhaust. Biochar (the output of which is about 30%) obtained after the pyrolysis and combustible gases (the output of which is about 20%) can be used as heat sources for the pyrolysis, and the rest part can be used for combustion and electricity generation, and can be merged into commercial power grids to obtain extra economic benefits.

Description

technical field [0001] The invention belongs to the field of renewable energy. Background technique [0002] With the rapid development of our country's economy and society, our country's energy consumption has grown rapidly at an average annual growth rate of 6.9%. In 2000, my country's primary energy consumption was 750 million tons of oil equivalent, becoming the world's second largest energy consumer. However, my country's proven fossil fuel per capita resources are less than 30% of the world's average level. The lack of resources and the growth of energy consumption The contradiction between them will become more prominent in the future. Since my country became a net importer of oil in 1993, oil imports have been rising year after year, reaching 120 million tons in 2004, and the dependence on foreign oil has exceeded 30%. It is estimated that by 2020, my country's oil supply gap will reach 250 million tons. Dependency will reach 54%. According to the internationally ac...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10B57/06C10B53/02C10B57/00F01D15/10
CPCY02E50/14Y02E50/13Y02E50/32Y02E50/10Y02E50/30
Inventor 孔永平郑冀鲁李永亮王小亮徐鹏君
Owner HENAN ZHONGBU NEW ENERGY
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