Preparation technique and apparatus of waste plastic pyrolyzed oil and application of waste plastic pyrolyzed oil as diesel fuels

A preparation process and technology of waste plastics, applied in the fields of environmental protection and energy utilization, can solve the problems of no relevant reports on combustion performance analysis, and achieve the best engine performance and emission indicators

Inactive Publication Date: 2018-10-09
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

[0003] Due to the different types of plastic raw materials and the different quality of fuel produced in the pyrolysis process, so far there are few studies on the application of plastic pyrolysis products in diesel engines. Researchers have focused on the mixing of plastic pyrolysis oil and diesel in single-cylinde

Method used

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  • Preparation technique and apparatus of waste plastic pyrolyzed oil and application of waste plastic pyrolyzed oil as diesel fuels
  • Preparation technique and apparatus of waste plastic pyrolyzed oil and application of waste plastic pyrolyzed oil as diesel fuels
  • Preparation technique and apparatus of waste plastic pyrolyzed oil and application of waste plastic pyrolyzed oil as diesel fuels

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Embodiment

[0038] Example Preparation of plastic pyrolysis oil

[0039] The specific process of preparing plastic pyrolysis oil is: firstly, the waste plastic raw material is broken into 1-2m 2 The small pieces are then transferred to the main chamber by a pump, and in the main chamber and the auxiliary chamber, the waste plastic pieces are replaced with carbon dioxide (CO 2 ) cleaning to ensure that there is no oxygen transfer to the conversion chamber; among them, using carbon dioxide (CO 2 ) because carbon dioxide is heavier than air, pushing air to the top of the chamber, and feedstock is transferred from the bottom of the chamber to the conversion chamber. The waste plastic block is converted into coke and gas by rapid pyrolysis in the conversion chamber with a temperature maintained at 900°C. One outlet of the conversion chamber collects recovered solids, including coke and / or part of the non-pyrolyzed waste plastic, and the other outlet is used for the gas phase The material i...

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Abstract

The invention discloses a preparation technique and apparatus of waste plastic pyrolyzed oil and application of waste plastic pyrolyzed oil as diesel fuels. Waste plastics are crushed; the crushed plastics are conveyed to a high-temperature pyrolytic unit in anoxic environment for the purpose of high-temperature pyrolysis; separating is performed to obtain waste plastic pyrolyzed oil; the waste plastic pyrolyzed oil and diesel oil are mixed in a ratio of 1:(1-4). The facts are known according to burning performance and emission characteristics in diesel engine operation that with 100% PPO (plastic pyrolyzed oil) under load of higher than 75%, 90% PPO under the load of higher than 50% and PPO blend of low content under all negative load conditions, an engine can run stably and reliably; under long-term operation with PPO operating under 80-90% engine load in the blend ratio of 60-70%, optimal engine performance and emission indexes can be attained.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and energy utilization, and in particular relates to a preparation process and device of waste plastic pyrolysis oil and its application as diesel engine fuel. Background technique [0002] In recent years, plastic production has exploded, reaching 129 million tons per year. Although many environmentally friendly methods have been developed to recycle waste plastics, millions of tons of waste plastics are still dumped into landfills or incinerated every day, causing environmental damage. heavily polluted. Waste plastics are abundant resources, and converting waste plastics into fuels is a promising alternative energy source, which can be obtained through traditional refining processes such as pyrolysis, gasification, hydrocracking, and catalytic cracking. Among them, the pyrolysis process is a thermal degradation process that occurs in the absence of oxygen. Through the pyrolysis...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10L1/04
CPCC10G1/00C10G2300/1003C10L1/04
Inventor 张海波张恒运刘延辉
Owner SHANGHAI UNIV OF ENG SCI
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