Natural gas multi-tower external cycle anaerobic regeneration dewatering method

A technology of natural gas and external circulation, which is applied in the fields of natural gas dehydration and natural gas purification in oilfields. It can solve the problems of increased resistance of the dehydration system, decreased dehydration efficiency, and increased economic costs, and achieves the effects of reducing energy consumption, saving operating costs, and prolonging service life.

Active Publication Date: 2013-06-26
四川科比科油气工程有限公司
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] S due to the Claus reaction x First, it adheres to the inner surface of the adsorbent, and then to the outer surface of the adsorbent. As time goes on, the dehydration efficiency of the adsorbent will decrease and the adsorbent must be replaced. The resistance drop of the dehydration system will increase, which will affect the subsequent sections. , increasing the economic cost of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Natural gas multi-tower external cycle anaerobic regeneration dewatering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] see figure 1 , for the convenience of description, the following four adsorption towers T101A~D are taken as an example to illustrate the present invention. Among them, the adsorption tower T101A and the adsorption tower T101B are in the adsorption process, the adsorption tower T101C is in the heating process, and the adsorption tower T101D is in the cooling process.

[0025] Adsorption process

[0026] This embodiment adopts double-tower parallel adsorption, that is, there are two towers in the adsorption step at any time, and the feeding time of the two towers differs by half an adsorption cycle.

[0027] Raw natural gas (including saturated water) enters from the top of adsorption towers T101A and T101B through valves K1a and K1b at room temperature, and comes out from the bottom of adsorption towers T101A and T101B through valves K2a and K2b, and is sent outside the boundary through valves K2a and K2b. During this process, the raw material gas water, heavy hydroca...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a natural gas multi-tower external cycle anaerobic regeneration dewatering method, and particularly relates to a natural gas dewatering device and a technique of an LNG (liquefied natural gas) preparation station for large-scale concentrated treatment of natural gas pipeline transportation. The dewatering method is characterized by comprising the steps of absorbing moisture in gas in saturated gas by an adsorbent under a normal-temperature condition through an adsorption tower; carrying out anaerobic regeneration on the adsorbent in the adsorption tower by external regenerated gas, utilizing in a recycling manner, and desorbing impurity components such as water and heavy hydrocarbon adsorbed on the adsorbent, so as to carry out the next adsorption process by the adsorption tower, wherein each adsorption tower passes through the processes of adsorption, decompression, purging, heating, cooling and boosting. The technique has the characteristics of simple flow, high dewatering efficiency, low energy consumption and the like; the service life of the adsorbent is prolonged; and the operating cost is reduced.

Description

technical field [0001] The invention belongs to the field of natural gas purification, in particular to the technical field of oilfield natural gas dehydration. Background technique [0002] The natural gas flowing out of the wellhead is almost all gas-phase saturated water, and even carries a certain amount of liquid water. The presence of moisture in natural gas often has serious consequences: contains CO 2 and H2 S In the presence of water, natural gas forms acid and corrodes pipelines and equipment; under certain conditions, natural gas hydrates are formed to block valves, pipelines and equipment; reduce pipeline transportation capacity, resulting in unnecessary power consumption. The presence of moisture in natural gas is a very unfavorable thing, therefore, the requirement for dehydration is more stringent. [0003] Natural gas dehydration methods generally include low temperature method, solvent absorption method, solid adsorption method, chemical reaction method a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10B01D53/26B01D53/02
Inventor 李才军万冬朱江陈天洪
Owner 四川科比科油气工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap