Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light dydrocarbon preparation method and light dydrocarbon preparation system with methyl alcohol as raw materials

A methanol and raw material technology, applied in the field of light hydrocarbon preparation and light hydrocarbon preparation system using methanol as raw material, can solve the problems of insufficient recovery of reaction heat, high difficulty in process control, unstable product quality, etc., and achieve stable and suitable Reaction conditions, reduce control difficulty, reduce the effect of overall energy consumption

Active Publication Date: 2015-11-11
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the process flow of domestic methanol-to-light hydrocarbons is complicated. The raw material methanol generally needs to be heated three times by the preheater, evaporator and superheater before entering the reactor. The heat of reaction cannot be fully recovered, resulting in high energy consumption per unit of product, and other Process control is difficult and product quality is unstable

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
  • Light dydrocarbon preparation method and light dydrocarbon preparation system with methyl alcohol as raw materials
  • Light dydrocarbon preparation method and light dydrocarbon preparation system with methyl alcohol as raw materials
  • Light dydrocarbon preparation method and light dydrocarbon preparation system with methyl alcohol as raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 (eg figure 1 Show):

[0037] The raw material methanol and the circulating gas are mixed to form a mixed feed, and after the heat exchange between the inlet and outlet heat exchangers and the output of the synthesis reactor, the temperature rises, and then enters the etherification reactor and the synthesis reactor to generate crude light hydrocarbons. A circulating gas cooling shock pipeline (indicated by a dotted line) can be arranged between the etherification reactor and the synthesis reactor. The output of the synthesis reactor is first sent to the medium-pressure steam generator to produce steam, and then the mixed feed is heated by the import and export heat exchangers, and the heat is further recovered. Finally, it is cooled (such as air cooler, water cooler) and then enters the three-phase Separation tank. Most of the separated gas phase is boosted by the compressor and returned to the reactor as a reaction cycle gas, and a small amount is discharge...

Embodiment 2

[0039] Example 2 (eg figure 2 Show):

[0040] The raw material methanol is mixed with the circulating gas to form a mixed feed, and after the heat exchange between the inlet and outlet heat exchangers and the output of the synthesis reactor, it enters the etherification reactor for reaction. The output from the etherification reactor is sent to the medium-pressure steam generator to produce by-product steam, and then enters the synthesis reactor to continue the reaction. The output from the reaction section is sent to the medium-pressure steam generator for by-product steam, then further heat recovery through the mixed feed heat exchanger, and finally cooled (such as air cooler, water cooler) and then enters the three-phase separation tank. Most of the separated gas phase is boosted by the compressor and returned to the reactor as a reaction cycle gas, and a small amount is discharged; the water phase is sent to the sewage treatment facility; the oil phase is sent to the pos...

Embodiment 3

[0042] Example 3 (as image 3 Show):

[0043] The raw material methanol and the circulating gas are mixed to form a mixed feed, and after the heat exchange between the inlet and outlet heat exchangers and the output of the synthesis reactor, it enters the integrated reactor to generate crude and light hydrocarbons. The integrated reactor is divided into an etherification section and a synthesis section with upper and lower reaction beds, and a reaction cycle gas cooling shock pipeline (indicated by a dotted line) can be installed between the beds. The output from the synthesis reaction section is first sent to the medium-pressure steam generator to produce steam, then through the mixed feed heat exchanger for further heat recovery, and finally cooled (such as air cooler, water cooler) and then enters the three-phase separation system. The three-phase separation system can be a three-phase separator with a water bag, or a combination of a gas-liquid separator and an oil-water ...

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 light dydrocarbon preparation method with methyl alcohol as raw materials, and further relates to a light dydrocarbon preparation system in which the method is adopted. The method comprises the steps that heat exchange and heating are carried out on the raw materials, methyl alcohol, and discharged materials of a synthesis reactor through an inlet and outlet heat exchanger, and then methyl alcohol and the discharged materials are conveyed into a methyltertiarvbutyl ether reactor; meanwhile, circulating gas is conveyed into the methyltertiarvbutyl ether reactor, the reaction temperature of the methyltertiarvbutyl ether reactor is controlled through the circulating gas conveyed into the methyltertiarvbutyl ether reactor, after heat recycling and cooling, the discharged materials of the synthesis reactor enter a three-phase separation system, and most of a gaseous phase separated out by the three-phase separation system is used as the circulating gas after being boosted by a gas compressor. The preparation system comprises a feed conveying pipeline, the methyltertiarvbutyl ether reactor, the synthesis reactor, the three-phase separation system and an after-separation system capable of separating fuel gas, liquefied gas, light dydrocarbon and heavy oil out of corresponding oil phases. The technological process is simple, control difficulty is low, energy consumption is low, and product quality is high and stable.

Description

technical field [0001] The invention relates to a method for preparing light hydrocarbons using methanol as a raw material, and also relates to a system for preparing light hydrocarbons using the method. Background technique [0002] With the rapid development of the global economy and the automobile industry, the world's oil demand and automobile fuel consumption continue to rise, air pollution is becoming more and more serious, and the public's awareness of energy conservation, emission reduction and environmental protection is also constantly strengthening. In order to cope with the severe challenge of global warming to human survival and development, automobile exhaust emission standards and fuel quality standards around the world are becoming increasingly stringent. The methanol-to-light hydrocarbon technology can directly convert crude methanol into low-sulfur, low-olefin, high-octane The products can be directly sold or blended with conventional refinery gasoline to o...

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): C10G3/00
CPCY02P30/20
Inventor 许贤文劳国瑞丰存礼李利军黄科
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com