Reduced-pressure micro-distillation system for biomass-based blended fuel

Abstract

The invention belongs to the field of detection on physical and chemical characteristics of petroleum products, and particularly relates to a reduced-pressure micro-distillation system for biomass-based blended fuel. The reduced-pressure micro-distillation system comprises a distillation device, a vacuumizing device, a cooling device and a recycling device. The distillation device is individually isolated by a partition plate and comprises a distillation flask, the bottom of the distillation flask is matched with a clamp table, a heater is arranged on the top of the clamp table and clings to the bottom of the distillation flask, the distillation flask is communicated with a sample bottle via a feed pipe with a pump, and the top of the distillation flaks is communicated with a distillation head. The reduced-pressure micro-distillation system has the advantages that the reduced-pressure micro-distillation system is simple in structure and high in external interference resistance, distillation range data of the biomass-based blended fuel can be quickly and accurately measured by the reduced-pressure micro-distillation system, and vapor pressure data of the fuel can be obtained by the reduced-pressure micro-distillation system.

Description

technical field [0001] The invention belongs to the field of detection of physical and chemical properties of petroleum products, in particular to a vacuum microdistillation system for biomass base notes and fuels. Background technique [0002] As the global environmental and climate conditions continue to deteriorate, the challenges facing mankind are becoming more and more severe. In 2016, the leaders of more than 170 countries signed the "Paris Agreement" as an international legal provision to control the global climate governance pattern after 2020. Greenhouse gas emissions to promote sustainable development. [0003] Traditional petroleum fuels will still be the main biomass keynote and fuel for a long time to come. At present, the clean fuels studied by domestic scholars mainly include alcohols, natural gas LNG, liquefied petroleum gas, biomass fuels, etc. New clean fuels and traditional petroleum fuels are formed into blended fuels in a certain proportion, and blende...

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Problems solved by technology

At present, the main problems of the atmospheric and vacuum distillation method are: (1) The required sample is large, generally 100-200ml, and the detection time is long, about 1 hour from preparation to completion of cleaning; (2) If there are too many heavy fractions in the sample, the viscosity is high , resulting in viscous tower flushing, many residues, and difficult to clean; (3) volatile gasoline fuel, the pretreatment steps are cumbersome, and the requirements for sample temperature, flask temperature and receiver temperature are high, resulting in large data errors

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