Check patentability & draft patents in minutes with Patsnap Eureka AI!

A combined process of ngl (liquefied natural gas recovery) and lng (liquefied natural gas)

A technology for liquefied natural gas, liquid state, used in the field of LNG and LNG recovery

Active Publication Date: 2017-04-19
LINDE ENG NORTH AMERICA
View PDF26 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, although these processes mentioned some ways to combine the LNG recovery process and LNG production, they still need to be improved to obtain a simple and efficient combination, especially a combination that reduces energy consumption

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
  • A combined process of ngl (liquefied natural gas recovery) and lng (liquefied natural gas)
  • A combined process of ngl (liquefied natural gas recovery) and lng (liquefied natural gas)
  • A combined process of ngl (liquefied natural gas recovery) and lng (liquefied natural gas)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0246] figure 1 In, the gas feed stream (1) (for example, a natural gas feed stream) comprising such as helium, nitrogen, methane, ethane, ethylene and hydrocarbons with a carbon number of 3 or more (for example, a natural gas feed stream) at a temperature of for example 10-50° C. , eg 250-1400 psig pressure is introduced into the system. The gaseous feed stream (1) is cooled and partially condensed in the main heat exchanger (2) by indirect heat exchange with the process streams (15, 16, 18) before being directed to the gas / liquid cryogenic separator (3). The overhead vapor stream (4) removed from the top of the gas / liquid cryogenic separator (3) is expanded, for example, in a turboexpander (5), and the expanded overhead vapor stream is then directed to the light components The lower area of ​​the rectification column (LEFC) (7). The bottom liquid stream (8) removed from the gas / liquid cryogenic separator (3) is directed to the middle section of the heavy fraction fraction...

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 discloses a combined process and equipment for liquefied natural gas and recovery of the liquefied natural gas. In particular, the improved process and equipment is obtained by converting a portion of the cooled overhead vapor obtained from the rectification column of the LNG recovery (NGL) unit, depending on the composition, for example, for the rectification in the LNG recovery unit Reducing the energy consumption of a liquefied natural gas (LNG) unit by recirculating and / or providing cold feed to the LNG unit, or in an LNG recovery unit by cooling the residual gas originating from the rectification column of the LNG recovery unit, and Depending on the composition, this cooled residual gas is used, for example, to provide reflux / feed for rectification in an LNG recovery unit and / or to provide cold feed to an LNG unit, thereby reducing the energy consumption of the LNG unit, and Make the whole process more energy-saving.

Description

technical field [0001] The invention relates to a combination process and equipment for liquefied natural gas and recovery of liquefied natural gas. In particular, this improved process and equipment is obtained by degassing a portion of the rectification column (e.g., a light ends fractionation column (LEFC) or a demethanizer / deethanizer) from a natural gas liquefied recovery (NGL) unit Depending on the composition, the cooled overhead vapor is used, for example, as a reflux for rectification in an LNG recovery unit and / or as a cold feed for an LNG unit to reduce energy consumption in a liquefied natural gas (LNG) unit, or in In the LNG recovery unit, by cooling (for example, by a separate cooling system) the residual gas originating from the rectification column of the LNG recovery unit and using the cooled residual gas, depending on the composition, for example, for Rectification in the LNG recovery unit provides reflux / feed and / or cold feed to the LNG unit, thereby reduci...

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 Patents(China)
IPC IPC(8): F25J1/00F25J5/00
CPCF25J1/0022F25J1/0035F25J1/004F25J1/0045F25J1/005F25J1/0052F25J1/0072F25J1/0204F25J1/0205F25J1/0208F25J1/021F25J1/0212F25J1/0215F25J1/0219F25J1/023F25J1/0241F25J3/0209F25J3/0238F25J2200/02F25J2200/30F25J2200/70F25J2200/74F25J2200/76F25J2205/04F25J2220/62F25J2240/02F25J2245/90F25J2260/20F25J2270/42F25J2270/66F25J2270/90F25J2290/40F25J3/0233F25J1/00F25J2200/78
Inventor 罗纳德·D·基斯特凡·布尔贝格丹妮尔·R·戈德贝克克里斯多夫·赫特尔阿丽莎·马蒂海因茨·鲍尔
Owner LINDE ENG NORTH AMERICA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com