System and method for measuring reaction velocity constant in process of producing gas by using solid fuel
A solid fuel and measurement method technology, applied in the direction of material thermal development, investigation stage/state change, etc., can solve the problem of multiple equipment, difficult quantitative distinction, and inability to directly obtain the reaction rate constant of solid fuel with oxygen, carbon dioxide and water vapor, etc. problem, to achieve the effect of reliable data
Inactive Publication Date: 2014-01-29
TIANJIN XUNER AUTOMATIC CONTROL EQUIP MFG +1
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Problems solved by technology
There are many devices using the above method, the measurement process is more complicated, the influence of different factors is difficult to distinguish quantitatively, and the reaction rate constant of solid fuel with oxygen, carbon dioxide and water vapor cannot be directly obtained
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[0062] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0063] As shown in the accompanying drawings, this embodiment first proposes a measurement system for the reaction rate constant of the solid fuel gas production process, which mainly includes a carbon dioxide cylinder 1, an oxygen cylinder 2, a nitrogen cylinder 3, a gas flow meter 4, and a steam generator 5 , Reaction furnace 6, gas analyzer 7, temperature recorder 8. The reaction tube of the reaction furnace 6 is a corundum tube, and the lower part of the reaction tube is provided with a material tray, which can be loaded and unloaded with reaction materials; the reaction furnace 6 is heated by electricity, and is equipped with a temperature controller for program heating and temperature control. The steam generator 5 is a warm water stora...
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Abstract
The invention discloses a system and method for measuring a reaction velocity constant in a process of producing a gas by using a solid fuel. The system comprises a carbon dioxide bottle, an oxygen bottle, a nitrogen bottle, a gas flow meter, a water vapor generator, a reaction furnace, a gas analyzer and a temperature recorder. According to the method, velocity constants of reactions of the solid fuel with oxygen, water vapor and carbon dioxide can be determined: during the measurement of the velocity constant of reaction of the solid fuel with the oxygen, an ignition point of coal in oxygen is determined, the diffusion rate of the oxygen under an actual temperature after the solid fuel is combusted is used for characterizing the combustion rate; and during the measurement of the velocity constants of reactions of the solid fuel with the carbon dioxide and the water vapor, actual reaction velocity speeds are determined under different temperatures, and thus the velocity constants of reactions are obtained after processing. By only using little solid fuel, the velocity constants of reactions of the solid fuel with the oxygen, the carbon dioxide and the water vapor can be obtained, and basic data is provided for analog computation of a solid fuel reactor.
Description
technical field [0001] The invention relates to the measurement of reaction activity parameters in the process of producing gas from solid fuel and chemical raw material gas, more specifically, it relates to a measurement system and method for the reaction rate constant when solid fuel reacts with oxygen, water vapor and carbon dioxide. Background technique [0002] Solid fuels include coal, biomass, coke and other solid combustible substances. The process of solid fuel to gas and chemical raw material gas mainly involves the reaction of carbon in solid fuel with oxygen, carbon dioxide, and water vapor. The reaction formula is as follows: [0003] The reaction of carbon and oxygen: C+O 2 =CO 2 ΔH=-393.7kJ / mol [0004] The reaction of carbon with water vapor: C+H 2 O=CO+H 2 ΔH=+131.0kJ / mol [0005] The reaction of carbon and carbon dioxide: C+CO 2 =2COΔH=+172.2kJ / mol [0006] The determination of the above reaction rate plays an important role in the engineering desi...
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IPC IPC(8): G01N25/12G01N25/38
Inventor项友谦李宏锁王启高文学
OwnerTIANJIN XUNER AUTOMATIC CONTROL EQUIP MFG