CN204494388U

CN204494388U - A kind of methanol fuel catalytic pyrolysis stove reactor

Info

Publication number: CN204494388U
Application number: CN201520041090.9U
Authority: CN
Inventors: 徐宁; 陈雄
Original assignee: JIAXIN ENERGY SOURCES CHEMICAL INDUSTRY Co Ltd SHANXI
Current assignee: JIAXIN ENERGY SOURCES CHEMICAL INDUSTRY Co Ltd SHANXI
Priority date: 2014-01-22
Filing date: 2015-01-21
Publication date: 2015-07-22
Anticipated expiration: 2025-01-21
Also published as: CN204438222U; CN104633724A

Abstract

A kind of methanol fuel catalytic pyrolysis stove reactor, be made up of multiple layer metal coil pipe, described coil pipe is trapezium structure, described trapezium structure coil pipe from top to bottom radius expands successively, and fill porcelain block heat exchange agent in described trapezium structure coil pipe upper portion pipe body, filling methanol cracking catalyst in lower pipe body, coil pipe upper orifice connects methyl alcohol fluid path, and coil pipe lower part outlet connects Carbinol stove burner.The multi hole grid for fixing porcelain block heat exchange agent and methanol cracking catalyst is provided with in coil pipe.The utility model make use of the waste heat produced in the burning of Carbinol stove core and makes methanol gasifying, methyl alcohol after gasification generates carbon monoxide and hydrogen with the catalyst for cracking generation catalytic reaction be placed on around stove core in Stainless Steel Coil again, and the carbon monoxide generated like this and hydrogen also have the gaseous mixture of excessive unreacted gaseous methanol to reflux to enter Carbinol stove core again and coordinates liquid methanol co-fire.Low-calorie liquid fuel is distilled as the gaseous fuel of high heating value, fundamentally improves efficiency of combustion and effect, test proves that mist sufficient combustion ignition temperature is far above methyl alcohol, and in situation, methyl alcohol consumption can decline about 10% on year-on-year basis.

Description

A kind of methanol fuel catalytic pyrolysis stove reactor

Technical field

The utility model relates to a kind of stove reactor of methanol fuel hydrogen production from catalytic pyrolysis.

Background technology

Methyl alcohol is a kind of important Organic Chemicals, is also clean alternative fuel.China's test uses methyl alcohol fuel nearly 20 years as an alternative, and range of application expands increasingly.Along with world petroleum price rises steadily, energy supply bottleneck is outstanding day by day, and methanol fuel, with advantages such as its cheapness, environmental protection, becomes an important branch of novel substitute fuel, the developing state of methanol fuel consumption figure also in continuous accelerated growth.

National many provinces and cities have started the upsurge of one development of new liquid fuel in recent years, wherein alcohol radical liquid fuel is because of the significant advantage of its cost performance aspect, start the traditional fuels such as a large amount of diesel oil substitute and liquefied petroleum gas and define certain market share, but no matter still there is many technical problems in fuel composition or with matching of burner as domestic cooking fuel in methyl alcohol, gasification latent heat as methyl alcohol causes greatly gasification difficulty, and conventional methanol kitchen range can only use high-power blower to make methyl alcohol forced gasification could form gaseous mixture with air and realize burning.Liquid methanol is insufficient because burning when gasification, and combustion, easily produces clogged with soot oil circuit at kitchen range stove in-core and combustion efficiency is day by day declined, also bring the difficulty of ordinary maintenance maintenance.Because of methanol fuel calorific value low efficiency difference, oil consumption obviously raises simultaneously, and the Blower-free methyl alcohol kitchen range of improvement also just utilize the waste heat that methyl alcohol burns to make himself gasification, and combustion, fundamentally do not improve the efficiency of combustion of methyl alcohol, so energy-saving effect is very not obvious.

Summary of the invention

The purpose of this utility model utilizes the waste heat in the use procedure of conventional methanol kitchen range to make methanol gasifying, methanol steam generates carbon monoxide and hydrogen through catalyst for cracking, the backflow of the gaseous mixture of reacted carbon monoxide, hydrogen and unreacted gaseous methanol is entered in methyl alcohol kitchen range and coordinates burning with liquid methanol.

A kind of methanol fuel catalytic pyrolysis stove reactor, be made up of multiple layer metal coil pipe, it is characterized in that described coil pipe is trapezium structure, described trapezium structure coil pipe from top to bottom radius expands successively, and fill porcelain block heat exchange agent in described trapezium structure coil pipe upper portion pipe body, filling methanol cracking catalyst in lower pipe body, coil pipe upper orifice connects methyl alcohol fluid path, and coil pipe lower part outlet connects Carbinol stove burner.

Described a kind of methanol fuel catalytic pyrolysis stove reactor, is characterized in that the multi hole grid be provided with in coil pipe for fixing porcelain block heat exchange agent and methanol cracking catalyst.

Described a kind of methanol fuel catalytic pyrolysis stove reactor, is characterized in that described coil pipe is at least made up of 5 layers of stainless steel tube, and be porcelain block heat exchange agent room in its middle and upper part one to three floor body, all the other are methanol cracking catalyst room.

The utility model is with stove methyl alcohol for raw material gasifies through the ring stainless steel coil pipe around Carbinol stove core and the thermal source heat exchange in work, and the catalyst for cracking catalytic reaction of the methyl alcohol after gasification in coil pipe, reacted gaseous mixture refluxes and enters the burning of stove core.

The utility model make use of the waste heat produced in the burning of Carbinol stove core and makes methanol gasifying, methyl alcohol after gasification generates carbon monoxide and hydrogen with the catalyst for cracking generation catalytic reaction be placed on around stove core in Stainless Steel Coil again, and the carbon monoxide generated like this and hydrogen also have the gaseous mixture of excessive unreacted gaseous methanol to reflux to enter Carbinol stove core again and coordinates liquid methanol co-fire.Be the gaseous mixture of carbon monoxide and hydrogen etc. by methanol oxidation cracking reaction.Low-calorie liquid fuel is distilled as the gaseous fuel of high heating value, fundamentally improves efficiency of combustion and effect, test proves that mist sufficient combustion ignition temperature is far above methyl alcohol, and in situation, methyl alcohol consumption can decline about 10% on year-on-year basis.Carbon distribution when using the stove core of this device itself also simultaneously to solve burning methanol and clogging, combustion flame is in blue smokeless free from extraneous odour.Carbon monoxide and hydrogen are all good gaseous fuels, and fully the thermal efficiency is high rapidly in burning, and calorific value is far away higher than methyl alcohol, and ignition temperature is high, and combustibility is excellent, significantly can reduce the oil consumption of methanol fuel.

Accompanying drawing explanation

Fig. 1 is coil arrangement schematic diagram.

Detailed description of the invention

The stove reactor operation principle of methanol fuel hydrogen production from catalytic pyrolysis of the present utility model is as follows:

Methanol decomposition hydrogen manufacturing: CH3OH=CO+2H2+90.7 KJ/mol

The gaseous mixture that above-mentioned reaction generates consists of

H2 73～74％

CO 23～24.5％

CO2 ～1.0％

CH3OH 　　300ppm

H2O is saturated

Feature of the present utility model is:

This catalytic cracking reaction device be designed to multilayer Stainless Steel Coil, coil pipe is trapezoidal, and radius expands successively from top to bottom, and coil pipe import connects methyl alcohol fluid path.The first to three layer close to filling porcelain block heat exchange agent in the coil pipe of flame kernel, stove core waste heat Quick-gasifying is utilized for making the liquid methanol entered wherein, third layer is to fill catalyst for cracking in lower coil pipe, the entrance of coil pipe is fixed by multi hole grid A, B respectively with outlet, is separated in coil pipe between the heat exchange agent of porcelain block and catalyst for cracking by multi hole grid C.Gaseous mixture after catalytic pyrolysis is connected with stove core liquid passage inlet from coil outlets.

The utility model uses special porcelain block heat exchange agent and methanol cracking catalyst, the long not easily efflorescence of temperature resistant range wide life-span, and its shape is tiny circular granular, and specific area is large, contacts fully and easily load and change with methyl alcohol.Simultaneously catalyst for cracking have also been enlarged the raw material range of methanol fuel because of characteristic that its catalysis scope is wide simultaneously, refined methanol, crude carbinol, methyl alcohol containing certain proportion moisture all effectively can work in this reaction unit, can generate the mist meeting and use equally.

During initialization, methyl alcohol is entered stove core through fluid path and light work, after of short duration burning stove core temperature is increased to 1000 degree, slowly open gas passage valve, catalytic pyrolysis after gasification in the Stainless Steel Coil making methyl alcohol enter around stove core, the gaseous mixture generated feeds the burning of stove core by gas feed, after tolerance to be mixed is stable, fluid path methyl alcohol passage can be closed and use pure gaseous combustion work.

The utility model also can realize gas-liquid two-way and work or either party work independently simultaneously, artificially traditional liquid methyl alcohol can be made to burn to coordinate with cracking mixture combustion to carry out by Valve controlling, so both can meet the user demand under different conditions, the stability of system can have been improved again.

Heat exchange of the present utility model, cat-cracker have that volume is little, cost is low, working stability, feature easy for installation, both directly can be integrated in kitchen range and use as finished product, also rear use can simply be installed additional to existing civil kitchen range, because of the work characteristics of its gas liquid two purpose, under the prerequisite not affecting use, installation and maintenance and replacing can be carried out very easily, be conducive to market application and promote.

Claims

1. a methanol fuel catalytic pyrolysis stove reactor, be made up of multiple layer metal coil pipe, it is characterized in that described coil pipe is trapezium structure, described trapezium structure coil pipe from top to bottom radius expands successively, and fill porcelain block heat exchange agent in described trapezium structure coil pipe upper portion pipe body, filling methanol cracking catalyst in lower pipe body, coil pipe upper orifice connects methyl alcohol fluid path, and coil pipe lower part outlet connects Carbinol stove burner.

2. a kind of methanol fuel catalytic pyrolysis stove reactor according to claim 1, is characterized in that the multi hole grid be provided with in coil pipe for fixing porcelain block heat exchange agent and methanol cracking catalyst.

3. a kind of methanol fuel catalytic pyrolysis stove reactor according to claim 1 and 2, is characterized in that described coil pipe is at least made up of 5 layers of stainless steel tube, and be porcelain block heat exchange agent room in its middle and upper part one to three floor body, all the other are methanol cracking catalyst room.