JPH04139141A - Method for transproting energy - Google Patents

Abstract

PURPOSE:To effectively utilize methanol in an energy-consuming area by transporting nearly valueless carbon separated during or before combustion of a fossil fuel, etc., in the energy-consuming area to an energy-rich area, gasifying the aforementioned carbon, reacting the resultant gas with hydrogen in the energy-rich area and converting the gas into the methanol. CONSTITUTION:Carbon 02 separated in a carbon fixing apparatus 011 during or before combustion of a carbon-containing compound or a fossil fuel (coal, petroleum or LNG) 08 in an energy-consuming area is transported to an area rich in energy and gasified into CO and H2 in the aforementioned area according to water gas-converting reaction using hydrogen 041 produced from natural energy 07, etc., as a heat source. The resultant gas is then reacted with the above-mentioned hydrogen 041 in a methanol synthetic plant 05 to synthesize methanol 06, which is subsequently retransported to the energy-consuming area and used as a fuel for an electric power plant 01, etc. Thereby, the carbon of nearly no value in the energy-consuming area is converted into the methanol which is a high-energy substance in the area rich in energy, returned to the energy-consuming area and effectively utilized as a fuel.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for transporting energy in the form of methanol from an energy-rich region to an energy-consuming region.

[Conventional technology]

Until now, there is no technology that allows materials produced in energy-consuming areas to be sent to energy-rich areas, where they are converted into high-energy materials, and then sent back to the energy-consuming areas. It is no exaggeration to say that.

[Problem to be solved by the invention]

In view of the above-mentioned state of the art, the present invention seeks to provide a method that enables the above-mentioned desired technology to be realized.

[Means to solve the problem]

The present invention transports carbon-containing compounds or carbon separated during or before combustion of fossil fuels in an energy-consuming region to an energy-rich region, and combines hydrogen produced in the region with hydrogen.
This is an energy transport method characterized by synthesizing methanol by reacting with gas produced by gasifying carbon and transporting the methanol to an energy consuming area.

Technologies for separating carbon during the combustion of carbon-containing compounds or fossil fuels include extracting coke by carbonizing coal;
Techniques include the extraction of soot through incomplete combustion of fossil fuels, and techniques for separating carbon before combustion of carbon-containing compounds or fossil fuels include, for example, the decarburization equipment and combustion equipment ( (Japanese Patent Application No. 111826). When using hydrocarbon fuel as fuel, this device partially burns the fuel and separates it into fixed carbon and produced gas, recovers the fixed carbon, and converts the produced gas (mainly H
2) is used as fuel.

In addition, as a technology for gasifying carbon to produce methanol synthesis gas, the temperature is 800 - 00°C and the pressure is 10 - 20°C.
at9. Technology to gasify carbon with water vapor (2C+3
H20→co+co□+3H2).

The hydrogen required for methanol synthesis can be easily obtained by electrolysis of water, especially in energy-rich regions.

Methanol synthesis technology combines gas (CO, CO2, L) obtained by gasifying carbon and hydrogen with [1, u/ZnO
Presence of system catalyst l, pressure 50-60 atg, temperature 25
The well-known reaction (CD+2H2→CH,D
H, C02+31→C1130H).

[Action and effect]

According to the present invention, carbon, which is almost worthless in energy-consuming areas, can be obtained as methanol, which is a high-energy substance, and has significant industrial significance even considering transportation costs.

[Example 1] An embodiment of the present invention will be described below with reference to FIG.

A power generation plant 01 in an energy consumption area consumes fossil fuel 08 and supplies electric power 09. The carbon 02 fixed during combustion in the carbon fixation device 011 attached to the power generation plant 01 is transported to an energy-rich region, and the carbon gasification device 03 converts natural energy 07 into hydrogen produced in the hydrogen production plant 04 as a heat source. C by water gasification reaction
It is gasified into D and H2. This is reacted with hydrogen produced in the hydrogen production plant 04 in a methanol synthesis plant 05 to synthesize methanol 06.

Methanol 06 is transported to an energy consuming region, where it is used as fuel for power plant 01. Further, the remaining fuel after carbon fixation in the carbon fixation device 011 is also used as fuel for the power generation plant 01.

Table 1 shows the carbon fixation/reuse rate when the fuel is coal and the ratio of the natural energy taken in to the total energy.

Table 1 The significance of Table 1 is as follows.

In the case of coal, the calorific value of carbon is high in the total calorific value. As an example, consider coal whose calorific value is 93% carbon. It is assumed that X% of this carbon is fixed with C and reused as a raw material for methanol.

The calorific value of methanol produced from C and H2 is 7
0% increase, so the total available energy when reusing X% of C is the ratio of the energy captured by combining H2 to the total available energy. Table 1 shows the values when X is changed to 10%, 50%, and 100%.

As is clear from Table 1, carbon can be fixed and fixed by the method of the present invention.
By reusing it, up to 39% of natural energy can be transported, reducing the consumption of this fractionated fossil fuel.

FIG. 2 shows the calorific value ratio of carbon in each fuel and the ratio of the maximum natural energy taken in to the total energy.

FIG. 2 shows the ratio of the energy taken in as a parameter to the calorific value ratio of carbon in the fuel and the total available energy when the reuse rate is 100%. Carbon-rich fuels have a lot of carbon, which is the raw material for methanol.
The proportion of natural energy that can be captured through transportation will increase.

[Example 2] Next, another embodiment of the present invention will be described with reference to FIG.

Hydrogen production plant 0 Hydrogen 041 produced using natural energy 07 and carbon 02 separated from methanol 06 in carbon fixation equipment 011 are converted into carbon gasification plant 03
Gas 03 gasified using hydrogen 041 as a heating source
1 (H2, CO), methanol synthesis plant 0
5, methanol 06 is synthesized, transported to an energy consumption area, and supplied to a carbon fixation device 011. Hydrogen fuel from which carbon has been separated 0 is consumed in the power generation plan) 01, and electricity 09
occurs. In this case, methanol is not used directly as a fuel, but is separated into carbon and hydrogen in the carbon fixation device of the power plant, and hydrogen is used as a fuel in the power plant.
The carbon is again used as a raw material for methanol synthesis. In this case, 2 moles of hydrogen can be transported per mole of methanol, and more hydrogen can be transported than 1.5 moles of hydrogen per mole of ammonia.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the flow of one embodiment of the present invention, and FIG.
The figure is a chart showing the relationship between the carbon calorific value ratio in fuel and the maximum natural energy intake in one embodiment of the present invention, and FIG. 3 is a schematic system diagram showing the flow of another embodiment of the present invention.

Claims (1)

[Claims] Gasification produced by transporting carbon-containing compounds or carbon separated during or before combustion of fossil fuels to an energy-rich region in an energy-consuming region, and producing hydrogen produced in the region and gasifying the carbon. 1. A method for transporting energy, comprising: synthesizing methanol by reacting with the methanol; and transporting the methanol to an energy consuming area.