Reactor and process for preparing hydrogen sulphide

A technology of reactors and hydrogen sulfide, applied in chemical instruments and methods, hydrogen sulfide, chemical methods for reacting liquid and gaseous media, etc., can solve a large number of problems

Inactive Publication Date: 2015-04-29
EVONIK OPERATIONS GMBH
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that these reactors have the disadvantage that they operate at a pressure of less than 5 bar and that, due to the fact that the reaction of sulfur and hydrogen is mainly catalytic, large amounts of catalyst are required

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
  • Reactor and process for preparing hydrogen sulphide
  • Reactor and process for preparing hydrogen sulphide
  • Reactor and process for preparing hydrogen sulphide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Embodiment 1 (comparative example)

[0103] 1000 l(STP) / h of hydrogen were introduced continuously via a glass frit at the base into a tube with an inner diameter of 5 cm which had been filled with liquid sulfur up to a height of 1 m. The sulfur consumed is compensated by further metering in liquid sulfur while keeping the filling level constant. Sulfur removed from the product gas stream by condensation is recycled in liquid form into the upper region of the tube. Above the liquid sulfur, sheathed thermocouples for measuring temperature were placed at intervals of 10 cm. When the reactor was electrically heated to 400°C via the outer wall, there was a uniform temperature of about 397°C within the sulfur. However, the thermocouple located above the sulfur showed the highest temperature of 520 °C. In addition, above the liquid sulfur, a sample of the new material made of standard stainless steel (1.4571) was provided at the position of the highest temperature. After ...

Embodiment 2

[0104] Embodiment 2 (comparative example)

[0105] Example 1 was repeated, except that the height of the liquid sulfur was raised to 4m. Maintain the highest temperature value above the liquid sulfur. Severe corrosion phenomena also occurred on material samples.

Embodiment 3

[0106] Embodiment 3 (comparative example)

[0107] Repeat Example 2, except that 15% by weight of powdered Co 3 o 4 MoO 3 / Al 2 o 3 The catalyst is suspended in liquid sulfur. Maintain the highest temperature value above the liquid sulfur. Severe corrosion phenomena also occurred on material samples.

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
diameteraaaaaaaaaa
heightaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

A reactor (1) has lower reactor region (2) for accommodating sulfur melt (3), non-pressure-bearing caverns (4) for accommodation of product gas mixture which forms in exothermic reaction and contains sulfur, supply device (5,5a) for controlled supply of pressurized gaseous hydrogen per cavern, gas-collecting region (6) for accommodating the product gas mixture, non-pressure-bearing installed device(s) (7) for transfer of the total amount of product gas mixture formed in the lower reactor region to the gas-collecting region and catalyst in the non-pressure-bearing installed device(s). A reactor has lower reactor region for accommodating sulfur melt, non-pressure-bearing caverns for temporary accommodation of product gas mixture which forms in exothermic reaction and comprises hydrogen sulfide, sulfur and hydrogen, at least one supply device for controlled supply of pressurized gaseous hydrogen per cavern, gas-collecting region for accommodating the product gas mixture at elevated temperature and elevated pressure with respect to standard conditions, non-pressure-bearing installed device(s) for continuous transfer of the total amount of product gas mixture formed in the lower reactor region to the gas-collecting region and catalyst in the non-pressure-bearing installed device(s), for reaction of sulfur and hydrogen maintained in the product gas mixture to hydrogen sulfide. An independent claim is included for preparation of hydrogen sulfide.

Description

technical field [0001] The present invention relates to a reactor and process for the synthesis of hydrogen sulfide from elemental sulfur and hydrogen at elevated pressure and elevated temperature. The present invention also relates to the use of said reactors for high yield and low H 2 S x content for the preparation of hydrogen sulfide. Background technique [0002] Hydrogen sulfide is an industrially important intermediate, e.g. for the synthesis of methyl mercaptan, dimethyl sulfide, dimethyl disulfide, sulfonic acid, dimethyl sulfoxide, dimethyl sulfone, and for many sulfur reaction. To date, it has been obtained mainly from mineral oil and natural gas processing and by the reaction of sulfur and hydrogen. [0003] Hydrogen sulfide is usually produced from elemental substances by introducing gaseous hydrogen into a sulfur melt, converting the sulfur into the gas phase and converting the sulfur therein to hydrogen sulfide in an exothermic reaction with hydrogen (Ullm...

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): C01B17/16B01J8/06B01J10/00B01J19/00B01J19/24
CPCC01B17/162B01J8/067B01J10/005B01J19/006B01J19/24B01J2219/00166B01J2219/00777B01J8/02B01J8/0285B01J19/00B01J2208/00327B01J2208/027
Inventor C·H·芬克尔代C·K·张R·马森S·文纳M·克费尔
Owner EVONIK OPERATIONS GMBH
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