Unlock instant, AI-driven research and patent intelligence for your innovation.

Small-size reactor online catalysis evaluation device and method for catalyst used for preparation of olefin from methanol

A methanol-to-olefins and evaluation device technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as analysis errors, and achieve the effects of avoiding experimental errors, reducing costs, and improving experimental efficiency

Inactive Publication Date: 2018-03-20
CHINA HUANENG GRP CO LTD +1
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent proposes to use a drying tube filled with magnesium perchlorate to adsorb the water in the product. However, magnesium perchlorate will also have a certain degree of adsorption or oxidation reaction on the trace components in the product, which brings great benefits to the analysis of the product. certain error

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
  • Small-size reactor online catalysis evaluation device and method for catalyst used for preparation of olefin from methanol
  • Small-size reactor online catalysis evaluation device and method for catalyst used for preparation of olefin from methanol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: refer to figure 1 , small reactor online catalytic evaluation device for methanol to olefins catalyst, including feed system 1, small reactor system 2, tail gas insulation system 3 and online gas chromatography analysis system 4, inlet of small reactor system 2 and feed system 1 The outlet of the small reactor system 2 is connected to the inlet of the tail gas insulation system 3, and the outlet of the tail gas insulation system 3 is connected to the inlet of the online gas chromatography analysis system 4.

[0027] The feed system 1 is composed of an inert gas cylinder 1A, a methanol storage tank 1B, a gas mass flowmeter 1C, a methanol metering pump 1D, and a mixing preheater 1E; the inert gas helium is controlled by the mass flowmeter 1C, and the methanol is measured by Controlled by pump 1D, helium and methanol flow into mixing preheater 1E for mixing and preheating, and then sent to small reactor system 2.

[0028] Described small-scale reactor system...

Embodiment 2

[0037] Embodiment 2, with reference to figure 2, small reactor online catalytic evaluation device for methanol to olefins catalyst, including feed system 1, small reactor system 2, tail gas insulation system 3 and online gas chromatography analysis system 4; inlet of small reactor system 2 and feed system 1 The outlet of the small reactor system 2 is connected to the inlet of the tail gas insulation system 3, and the outlet of the tail gas insulation system 3 is connected to the inlet of the online gas chromatography analysis system 4.

[0038] The feed system 1 is composed of inert N 2 Gas cylinder 1a, 2% dimethyl ether / N 2 Standard gas cylinder 1b, rotameter 1c, rotameter 1d, mixing preheater 1e; inert gas N 2 Controlled by rotameter 1c, dimethyl ether is controlled by rotameter 1d, nitrogen and dimethyl ether flow into mixing preheater 1e for mixing and preheating, and then sent to small reactor system 2.

[0039] The small reactor system 2 includes a stainless steel re...

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

PropertyMeasurementUnit
volumeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a small-size reactor online catalysis evaluation device and method for a catalyst used for preparation of olefin from methanol. The device comprises a small-size reactor, wherein the inlet of the small-size reactor is connected with the outlet of a feeding system, the outlet of the small-size reactor is connected with the inlet of a tail gas thermal insulation system, andthe outlet of the tail gas thermal insulation system is connected with the inlet of an online gas chromatography analysis system; the online gas chromatography analysis system comprises a two-positionswitching valve, a quantitative tube, chromatographic columns and a hydrogen flame ionization detector. The method comprises that thermal insulated tail gas sequentially passes through the two-position switching valve, the quantitative tube and the chromatographic column and then enters the hydrogen flame ionization detector, wherein the two-position switching valve is a reversing valve with twovalve positions, and the chromatographic columns comprise at least one chromatographic column used for separating water from hydrocarbon and a chromatographic column used for further separating different olefin components. The device and the method which are provided by the invention avoid experimental errors and low efficiency which are caused by product condensation and offline analysis and havethe advantages of precision, speediness and high efficiency.

Description

technical field [0001] The invention relates to the technical field of methanol-to-olefin catalysts, in particular to a small reactor online catalytic evaluation device and method for methanol-to-olefin catalysts. Background technique [0002] Methanol-to-olefins is a general term for a class of technologies that produce low-carbon olefins at a certain reaction temperature and pressure, using methanol, dimethyl ether or other methanol derivatives as raw materials, through the conversion of molecular sieve catalysts. Low-carbon olefins such as ethylene and propylene are important basic organic raw materials. They are not only used in the production of bulk commodities such as polyethylene, polypropylene, polyvinyl chloride, and synthetic rubber, but also in the production of acetaldehyde, ethylene oxide, propylene oxide, Acrylonitrile, butanol and other important chemicals. In recent years, the downstream demand for low-carbon olefins has developed rapidly, and my country im...

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): G01N30/02
CPCG01N30/02
Inventor 王琪王晓龙刘蓉何忠肖天存
Owner CHINA HUANENG GRP CO LTD