Delayed coking treatment method for waste biomass

A waste biomass and delayed coking technology, which is applied in cracking, non-catalytic thermal cracking, petroleum industry, etc., can solve the problems of not disclosing or prompting the treatment of waste biomass

Inactive Publication Date: 2007-01-10
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the patent does not disclose or suggest the use of a delayed coking process to treat waste biomass

Method used

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  • Delayed coking treatment method for waste biomass

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Experimental program
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Effect test

Embodiment 1

[0043] Use fallen leaves as raw materials, crush them to an average particle size of 0.1mm, and then send them into a mixing tank to mix with residual oil and distillate oil, where the mixing mass ratio is 0.05%, and then send the mixed raw materials into the convection tube of the heating furnace Preheat to 190°C at a heating rate of 5°C / min, and then rapidly raise the temperature to 420°C at a heating rate of 20°C / min in the furnace tube of the radiation chamber of the heating furnace, where the operating pressure of the coke drum is 0.01MPa (gauge pressure). After the reaction and fractional distillation, the yield of distillate oil obtained is about 52.1% (dry basis), and the yield of coke is about 33.6% (dry basis).

Embodiment 2

[0045] Use waste wood as raw material, crush it to an average particle size of 2mm, and then send it into a mixing tank to mix with residual oil and distillate oil, wherein the mixing mass ratio is 15%, and then send the mixed raw material into the convection tube of the heating furnace Preheat to 300°C at a heating rate of 10°C / min, and then rapidly raise the temperature to 510°C at a heating rate of 80°C / min in the furnace tube of the radiation chamber of the heating furnace, wherein the operating pressure of the coke drum is 0.2MPa (gauge pressure). After the reaction and fractional distillation, the yield of distillate oil obtained is about 41.2% (dry basis), and the yield of coke is about 39.4% (dry basis).

Embodiment 3

[0047] Use straw as raw material, crush it to an average particle size of 0.2mm, and then send it into a mixing tank to mix with residual oil and distillate oil, wherein the mixing mass ratio is 5%, and then send the mixed raw material into the convection tube of the heating furnace Preheat to 240°C at a heating rate of 6°C / min, and then rapidly raise the temperature to 480°C at a heating rate of 50°C / min in the furnace tube of the radiation chamber of the heating furnace, where the operating pressure of the coke tower is 0.03MPa (gauge pressure). The yield of distillate obtained after reaction and fractionation is about 50.4% (dry basis), and the yield of coke is about 33.6% (dry basis).

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Abstract

The invention offers delayed coking processing method used to process discarded biomass in large scale and effectively produce biomass energy sources. It belongs to discarded biomass processing field. And the method includes the follows steps: smashing the material to 0.1-2mm granularity; mixing it with oil with 0.05-15% mass ratio; heating to 190-300 centigrade degree; further heating to 420-510 centigrade degree; processing delayed coking; fractionating the oil gas product to gain fractionated product.

Description

technical field [0001] The invention relates to the field of waste biomass treatment, more specifically, the invention relates to a method for treating waste biomass with a delayed coking process. Background technique [0002] In a broad sense, biomass refers to various organic substances obtained by photosynthesis on the earth, including plant matter, animal matter, agricultural and forestry waste, and organic domestic waste. It is a stable renewable resource. China is rich in biomass resources, and the country can produce 5 billion tons of biomass every year, among which waste wood, crop straw and other wastes produced in agriculture and forestry produce a large amount. With the continuous improvement of my country's urbanization level, the output of urban organic domestic waste in biomass resources is also increasing. According to statistics, in 2000, the output of municipal solid waste in Shanghai reached 6.41 million tons, and it is expect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G9/00
Inventor 汪华林陈于勤白志山沈申春
Owner EAST CHINA UNIV OF SCI & TECH
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