Technique method for preparing synthesis gas of methyl by using transformation of hydrocarbons and water vapour

A technology for methanol synthesis gas and a process method is applied in the field of converting gaseous hydrocarbons to produce methanol synthesis gas, which can solve the problems of inflexible means and limited adjustment strength, and achieve the effects of reducing oxygen consumption and raw natural gas consumption.

Active Publication Date: 2008-10-15
庞玉学
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the heat balance of the conversion process, the above process regulates the H 2 The method of / C is not flexible enough, and the adjustment is limited

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
  • Technique method for preparing synthesis gas of methyl by using transformation of hydrocarbons and water vapour
  • Technique method for preparing synthesis gas of methyl by using transformation of hydrocarbons and water vapour
  • Technique method for preparing synthesis gas of methyl by using transformation of hydrocarbons and water vapour

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Refined and desulfurized raw natural gas (total C 95%, CO 2 6%), mixed with steam with a flow rate of 736.6Kmol / h, a pressure of 2.3MPa, and a temperature of 220°C, and then sent to the first-stage reformer 1 convection section natural gas / steam mixture preheater to preheat to 510°C, It then enters the reforming tube of the first-stage reforming furnace 1 to absorb the heat released by the combustion of the mixed fuel gas and air outside the tube, and under the catalytic action of the catalyst in the tube, the CH 4 The reforming reaction with water vapor, the pressure of the primary reforming gas from the primary reforming furnace 1 is 1.84MPa, the temperature is 785°C, and the residual CH 4 The content is 4% (in terms of dry gas, the same below).

[0039] from flue gas CO 2 CO recovery device 6 with a flow rate of 28.7Kmol / h, a pressure of 0.1MPa, and a temperature of 40°C 2 Gas (CO 2 99.5%), and the flow rate from the purge gas recovery device 5 is 44.1Kmol / h, th...

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

A process for preparing the synthetic methanol gas from gas-state hydrocarbon and water vapor includes such steps as stage-one conversion, adding CO2 and O2, stage-two conversion, and regulating H2 / C ratio to obtain high-temp synthetic metanol gas.

Description

technical field [0001] The invention relates to a process for producing methanol synthesis gas, in particular to a process for producing methanol synthesis gas by adopting a two-stage conversion method suitable for converting gaseous hydrocarbons. Background technique [0002] Using gaseous hydrocarbons as raw materials to produce methanol includes raw gas compression, purification, conversion, synthesis gas and cycle gas compression, methanol synthesis, crude methanol rectification and other processes. Methanol is a high-energy-consuming product, and the conversion (or gas-making) process is a key process for synthesizing methanol. The proportion of natural gas consumption in the conversion process to the total energy consumption of the synthetic methanol process is about 80% for small and medium-sized units, and more than 90% for large-scale units. Therefore, the improvement of methanol production technology should focus on adopting low energy consumption process, fully r...

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
IPC IPC(8): C07C31/04C07C29/151C01B3/34
Inventor庞玉学刘武烈万蓉张学仲庞彪王志坚曾竹萍
Owner庞玉学