Apparatus and method for producing biosynthesis gas

Abstract

The invention discloses a device and a method for preparing biological synthesis gas. The device for preparing the biological synthesis gas comprises a gasifier, wherein a catalytic bed partition plate is arranged in the middle inside the gasifier; a gas distribution plate is arranged at the middle-upper part inside the gasifier; a mixing chamber is arranged on the top of the gasifier; a water storage tank is connected with a first pump, a second preheater and the mixing chamber through pipelines in sequence; a liquid-phase biomass storage tank is connected with a second pump, a third preheater and the mixing chamber through pipelines in sequence; the bottom of the gasifier is connected with a gas-liquid separator through a pipeline; the gas-liquid separator is connected with a liquid collection bottle; the liquid collection bottle is connected with a gas-washing bottle, a gas filter pipe, a second gas flowmeter and a gas sampling valve through pipes in sequence and then movably connected with a product gas collection container; and a gas carrying bottle is connected with a pressure reducing valve, a first stop valve, a back pressure valve, a first gas flowmeter and a first preheater through pipelines in sequence and then connected with the top of the mixing chamber. The device provided by the invention can be used for treating all liquid-phase biomass and has very strong adaptability to raw materials.

Description

technical field [0001] The invention belongs to the technical field of biomass energy utilization, in particular to a biomass gasification device for preparing biosynthesis gas. Background technique [0002] At present, the situation of air pollution is becoming more and more serious, among which the coal burning process emits a large proportion of pollutants, and the degree of smog is aggravated. Natural gas is a diversified energy carrier with high utilization efficiency. It can be used in existing pipeline networks and existing efficient terminal utilization technologies to promote regional energy security and reduce emissions of particulate matter and harmful gases. With the improvement of people's living standards, the requirements for environmental protection and living comfort are getting higher and higher, and the demand for natural gas is increasing rapidly. Tensions are rising. Therefore, it is imminent to seek new energy sources to replace natural gas. Coal-to-...

AI Technical Summary

Problems solved by technology

The main reason is that due to the difference in gasifier structure, heat transfer mode and reaction parameters that need to be controlled, the gasification performance, energy consumption and adaptability to raw material particle size are different, and each has its own irreparable defects.

At present, only the fluidized bed gasifier has continuous production capacity, but its structure is complex, energy consumption is large, and it is difficult to realize industrial scale-up production

The fluidized bed reactor disclosed in Chinese patent CN201634633U has the above-mentioned problems, and the continuity of its feeding device cannot be guaranteed. In addition, the unreasonable condensation method also brings additional power consumption in product collection.

At present, the biosynthesis gas produced by biomass pyrolysis (rapid pyrolysis) consumes a lot of energy and is accompanied by secondary pollution. At the same time, the composition of the biosynthesis gas product is complex, and the concentration of effective components is too low, so it is difficult to apply directly and requires a very complicated and delicate process. Upgrading process, which in turn leads to high cost

[0006] At present, solid biomass is mostly used as raw material, but solid biomass has low energy density, high transportation cost, large volume, and large area. Therefore, there is an urgent need for a biosynthesis gas that uses liquid biomass with high energy density as raw material. device and method to address the above deficiencies

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