Preparation method of green petrochemical natural gas

A natural gas and petrochemical technology, applied in the field of green petrochemical natural gas preparation, can solve problems such as environmental pollution

Inactive Publication Date: 2015-04-29
杨志泉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of green petrochemical natural gas, in order to meet the demand for energy and chemical raw materials and solve the problem of environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] a. Preparation of carbon dioxide: Using oxygen and water vapor as gasification agents, react limestone at high temperature to obtain carbon dioxide; the temperature of the high temperature reaction is 1300°C.

[0051] b. Preparation of carbon monoxide: use oxygen and water vapor as gasification agents to reduce the above carbon dioxide to carbon monoxide; wherein, the reduction temperature is 1200° C., and the reduction pressure is 9 MPa.

[0052] c, synthetic natural gas: with above-mentioned carbon monoxide and hydrogen under the catalytic reaction of metal nickel, the temperature of catalytic reaction is 1400 ℃, and reaction pressure is 8MPa, and the consumption of catalyzer is 30% of carbon monoxide weight, to obtain final product.

Embodiment 2

[0054] a. Preparation of carbon dioxide: Using oxygen and water vapor as gasification agents, react limestone at high temperature to obtain carbon dioxide; the temperature of the high temperature reaction is 1600°C.

[0055] b. Preparation of carbon monoxide: use oxygen and water vapor as gasification agents to reduce the above carbon dioxide to carbon monoxide; wherein, the reduction temperature is 1000° C., and the reduction pressure is 4 MPa.

[0056] c. Synthetic natural gas: the above-mentioned carbon monoxide is desulfurized through the tannin extraction process, decarburized by the pressure swing adsorption method and purified through the conversion process to obtain purified carbon monoxide.

[0057] Then the purified carbon monoxide and hydrogen are catalyzed by metal nickel, the temperature of the catalytic reaction is 1100° C., the reaction pressure is 5 MPa, and the consumption of the catalyst is 25% of the weight of carbon monoxide to obtain final product.

Embodiment 3

[0059] a. Preparation of carbon dioxide: Using oxygen and water vapor as gasification agents, react limestone at high temperature to obtain carbon dioxide; the temperature of the high temperature reaction is 1100°C.

[0060] b. Preparation of carbon monoxide: use oxygen and water vapor as gasification agents to reduce the above carbon dioxide to carbon monoxide; wherein, the reduction temperature is 1600° C., and the reduction pressure is 9 MPa.

[0061] c. Synthetic natural gas: the above-mentioned carbon monoxide is desulfurized through the tannin extraction process, decarburized by the pressure swing adsorption method and purified through the conversion process to obtain purified carbon monoxide.

[0062] The conversion process is divided into two procedures:

[0063] The first procedure is to send the carbon monoxide gas output after desulfurization and decarbonization to the shift reactor device, and then add water vapor to make CO and water vapor (replace water to react)...

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Abstract

The invention relates to a preparation method of green petrochemical natural gas. The method comprises the following steps: a, preparing carbon dioxide, namely reacting limestone at a high temperature to obtain the carbon dioxide; b, preparing carbon oxide, namely reducing the carbon dioxide into the carbon oxide; c, synthesizing natural gas, namely reacting the carbon oxide with the hydrogen under the effect of a catalyst to obtain the natural gas. The natural gas disclosed by the invention has the advantages that the energy demand is well satisfied, and the natural gas can be used for replacing various energies.

Description

technical field [0001] The invention relates to a preparation method of green petrochemical natural gas. Background technique [0002] At present, China is already the world's largest economy and the largest energy consumer. With the continuous development of the economy, the demand for energy will further increase. Therefore, increasing energy supply and developing reliable alternative energy sources are the key to sustainable economic and energy development. [0003] However, China has always been poor in oil and gas. It is extremely incompatible with the development of the country's economy and society. Especially in recent years, the country's annual self-produced oil has not reached half of the market demand (only 42%), and still lacks more than half (58%), which needs to be imported at high prices from abroad. There is even an embarrassing situation where PetroChina has traveled all over the world to buy oil with a huge amount of national funds (more than one trilli...

Claims

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Application Information

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IPC IPC(8): C01B3/02
Inventor 杨志泉
Owner 杨志泉
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