Steam explosion pretreatment gas collection device and detection method

Abstract

The invention discloses a steam explosion pretreatment gas collection device and a detection method, wherein the collection device comprises an explosion tank body and a spiral separator connected at the bottom part of the explosion tank body, the spiral separator is connected with one connector of a gas storage chamber through a first connection pipeline and a second connection pipeline sequentially, the other two connectors of the gas storage chamber are respectively connected with a third connection pipeline and a fourth connection pipeline, an output port of the third connection pipeline is connected with a fifth connection pipeline through a first gas absorption bottle, an output port of the fifth connection pipeline is connected with a second gas absorption bottle, and an output port of the fourth connection pipeline is connected with an inert gas cylinder. The device solves the difficult problems of collecting and quantitatively analyzing explosion steam in the pretreatment process of steam explosion, the structure is simple, the operation is convenient, no special gas absorption device is needed, and the device can be used for the absorption and detection of most volatile gases. The device provides an excellent experiment condition and a research approach for the field of researches on biomass energy pretreatment.

Description

Technical field [0001] The invention relates to gas collection and detection, in particular to a collection device and detection method for steam explosion pretreatment gas. Background technique [0002] With the depletion of fossil energy such as petroleum and the increasing awareness of people's environmental protection, the replacement of fossil energy by renewable energy represented by bioethanol has become the best choice to solve the energy crisis. As the second-generation bioethanol, cellulosic ethanol can not only solve the problem of insufficient raw materials for the first-generation biomass ethanol, but also effectively reduce CO 2 And other greenhouse gas emissions, alleviating its adverse impact on the environment. The pretreatment of lignocellulosic raw materials is a key link in the entire cellulosic ethanol production process with high energy consumption, high cost. The pretreatment method not only affects the production of reducing sugars of fiber raw materials,...

AI Technical Summary

Problems solved by technology

[0004] There have been a lot of reports on the inhibitory components in steam explosion hydrolyzate, but there are few reports on the steam explosion gas

This is mainly because the higher pressure of steam explosion gas makes it difficult to collect and detect with conventional equipment and methods

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