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

Process device and process method for chemical chain hydrogen production

A process method and technology of process device are applied in the field of new devices for chemical chain hydrogen production, which can solve the problems of high reactor requirements and high reaction temperature, and achieve the effects of wide selection range, long contact time, and easy realization of industrialization.

Active Publication Date: 2020-10-16
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of high reaction temperature and high requirements on the reactor in the chemical looping hydrogen production process in the prior art, the present invention intends to provide a new chemical looping hydrogen production process device and method, by adding a fuel reactor, The reaction of the fuel in the fuel reactor is divided into two stages in order to reduce the reaction temperature and meet the reaction requirements

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
  • Process device and process method for chemical chain hydrogen production
  • Process device and process method for chemical chain hydrogen production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the chemical chain hydrogen production process device of the present invention includes fuel reactor I11, fuel reactor II12, steam reactor 2 and air reactor 3; the lower ends of fuel reactor I11 and fuel reactor II12 are equipped with load The oxygen outlet is connected to the oxygen carrier inlet of the steam reactor 2, the oxygen carrier outlet of the steam reactor 2 is connected to the oxygen carrier inlet of the air reactor 3, and the oxygen carrier inlet of the air reactor 3 is respectively connected to the fuel reaction The oxygen carrier inlet of the fuel reactor I11 and the fuel reactor II12; each reactor in the process device is provided with a gas inlet and a gas outlet, and the gas outlet of the fuel reactor I11 is connected with the gas inlet of the fuel reactor II12. The fuel reactor I11, the fuel reactor II12 and the steam reactor 2 are all countercurrent moving bed reactors, and the air reactor 3 is a riser reactor.

Embodiment 2

[0029] Utilize the processing device of embodiment 1 to carry out the method for chemical chain hydrogen production, wherein oxygen carrier is Fe 2 o 3 / Al 2 o 3 , take 20g and put them into fuel reactor I11 and fuel reactor II12 respectively, and the fuel gas is methane. The specific steps are:

[0030] (1) Methane is introduced from the lower end of the fuel reactor I11 at a flow rate of 10mL / min, and enters the fuel reactor I11 through the air distribution plate, and the reaction temperature is controlled at 800°C under normal pressure, and the methane reacts with the oxygen carrier Produce gas I, gas I includes methane, carbon monoxide, carbon dioxide.

[0031] (2) The generated gas I flows out from the upper left opening, and enters from the lower right opening of the fuel reactor II12. The reaction temperature is controlled at 750°C and normal pressure, and the generated gas I reacts with the oxygen carrier to generate the generated gas II. , the generated gas II in...

Embodiment 3

[0035] The other steps are the same as in Example 2, except that the reaction temperature of the fuel reactor I11 in step (1) is controlled to 750°C.

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 present invention provides a process apparatus and a process method for chemical-looping hydrogen generation. The process apparatus comprises two fuel reactors, a steam reactor and an air reactor,wherein the gas outlet of the fuel reactor I is connected to the gas inlet of the fuel reactor II, the oxygen carrier outlets of the two fuel reactors are connected to the oxygen carrier inlet of thesteam reactor, and the steam reactor is connected to the air reactor. According to the present invention, by using the process apparatus, the reaction temperature in the fuel reactor I is controlledat 750-800 DEG C, the reaction temperature in the fuel reactor II is controlled at 650-750 DEG C, and the reaction of the fuel gas in the fuel reactor is divided into two stages, such that the reaction temperature is substantially reduced compared to the reaction temperature of the general process condition (850-950 DEG C), the energy consumption is reduced, the conversion from fuel gas to carbondioxide is complete, and the CH4 conversion rate and the CO2 selectivity are improved.

Description

technical field [0001] The invention relates to a novel device for chemical chain hydrogen production, which belongs to the technology in the field of chemical chain hydrogen production. Background technique [0002] At present, the annual consumption of hydrogen in the world is about 50 million tons. The domestic annual hydrogen consumption exceeds 10 million tons, ranking first in the world, of which more than 90% are used for synthetic ammonia, synthetic methanol and petroleum refining hydrogenation. Hydrogen is an important process raw material for refineries. It is widely used in gasoline, diesel, residual oil hydrogenation and other processes to adjust the hydrogen-carbon ratio of products and desulfurization and denitrogenation. From a global perspective, crude oil is becoming more and more heavy and inferior. For large-scale refineries, the hydrocracking and hydrotreating process routes in the processing of heavy and inferior crude oil are beneficial to "eat dry sque...

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): C01B3/34
Inventor 梁皓孙兆松尹泽群刘全杰
Owner CHINA PETROLEUM & CHEM CORP