The main component of water gas, the main component of coal gas

Water gas is a gas produced by water vapor through red-hot coke, the main components are carbon monoxide, hydrogen, and water and carbon dioxide are emitted after combustion, with trace amounts of CO, hydrocarbons and NOx.

The combustion speed is twice that of gasoline, good anti-explosion, according to foreign research and patent reports, the compression ratio can be reached, the thermal efficiency is increased by 20 40%, the power is increased by 15%, the fuel consumption is reduced by 30%, and the exhaust gas purification is close to the European IV standard, and a trace amount of platinum catalyst can be used for purification.

Water gas (main components: Co, H) is an important fuel and chemical raw material, which can be prepared by water vapor through the red-hot carbon layer: C (S) + H O (G).

Carbon dioxide reacts with water to form carbon monoxide.

The main components of gas are:Carbon monoxide

Coal gas is a gas containing flammable components that is processed from coal as a raw material. According to the processing method, the nature and use of coal gas, it is divided into: water gas obtained from coal gasification.

Semi-water gas, air gas (or furnace gas), the calorific value of these gases.

low, so it is also collectively referred to as low calorific value gas; Coal dry distillation.

The gas obtained by coking in the method is called coke oven gas.

It belongs to the medium calorific value of gas, which can be used as a civil fuel in the city.

Gas

Water gas is made up of water vapor.

and high-temperature carbon. Since the reaction is endothermic, it is necessary to produce interstitial products in order to maintain the furnace temperature. The CO and H2 in the obtained gas are high, and the calorific value of the gas is high, but the thermal efficiency is low, about 54%, and the cost is high and the equipment is complex.

Generally, it is used as synthetic ammonia raw gas, and less as industrial fuel gas.

The calorific value of coal gas is low, so it is also collectively referred to as low calorific value gas; Carbon monoxide and hydrogen in coal gas are important chemical raw materials, which can be used to synthesize ammonia, methanol, etc. For this reason, the coal gas used as a chemical raw material is called syngas, and it can also be used as natural gas and light oil.

and heavy oil.

The above content reference:Encyclopedia - Gas

Water gas is a gas produced by red-hot coke, the main components are carbon monoxide, hydrogen, and water and carbon dioxide are emitted after combustion, with trace amounts of CO, HC and NOx.

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The main components of water gas are carbon monoxide, hydrogen, and water and carbon dioxide are emitted after combustion, with trace amounts of CO, hydrocarbons and NOx.

Water gas is a gas produced by water vapor passing through red-hot coke, which can be used as fuel, or as a raw material for ammonia synthesis, petroleum synthesis, organic synthesis, hydrogen production, etc.

Industrially, the production of water and gas generally adopts intermittent periodic fixed-bed production technology. The furnace structure adopts the UGI gasifier type. In a gasifier, carbon and steam react mainly with water and gas as follows.

Process flow

In the process of producing gas from water gas, in order to ensure the safety of operation and fully discharge the combustible components in the gas, the manufacturing process of water gas is not simply composed of two processes of air blast and steam blasting, but generally composed of 5 or 6 processes to form a cycle. For example, take a 6-stage cycle:

1. Blowing stage: the bottom of the air furnace is blown in, the material layer is heated, and the exhaust gas is discharged from the top of the furnace.

2. Steam blowing stage: the bottom of the steam furnace is blown in, and the residual waste gas in the first stage is discharged to ensure the quality of the produced gas.

3. One-time upper blowing gas stage: water vapor is blown into the bottom of the furnace, and the gas is produced by heat absorption and gasification in the material layer, which escapes from the top, and the temperature of the lower part of the material layer drops significantly.

4. Downward blowing gas stage: water vapor is blown in from the top of the furnace, and the water vapor gasification reaction is produced in the furnace, at this time, the heat of the material layer is further absorbed, and the produced water gas escapes from the bottom of the furnace, and the output of water gas escapes from the bottom of the furnace, and the temperature of the upper material layer also decreases significantly.

5. Secondary upper blowing gas production stage: This is a stage set up for safe operation, the purpose of which is to use steam to exhaust the water gas accumulated at the bottom of the furnace when the upper layer is making gas, so as to prevent accidents caused by encountering with blast air, but at this time, the gas escaping from the top of the furnace still has a high CO+H2, so the escaping gas should be the first gas.

6. Air blowing stage: air is blown into the bottom of the furnace, and the furnace and the remaining gas are escaped from the top of the furnace, and the air is added. This cycle is generally between minutes in a process.

The main components of water gas are carbon monoxide, hydrogen, and water and carbon dioxide are emitted after combustion, with trace amounts of CO, hydrocarbons and NOx.

Water gas is a gas produced by water vapor through red-hot coke, the main components are carbon monoxide, hydrogen, and water and carbon dioxide are emitted after combustion, with trace amounts of CO, hydrocarbons and NOx. It can be used as a fuel, or as a raw material for ammonia synthesis, petroleum synthesis, organic synthesis, hydrogen production, etc.

Water gas is produced by alternately injecting air and water vapor into a fixed-bed coal gasifier. Its composition is roughly as follows: CO25%, H250%, CO40%, N25%.

A mixture of air and water vapor is continuously fed into the gasifier to carry out the coal gasification reaction at high temperature.