EP0115094A2
Expired / Lapsed
EP
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Process and apparatus for the production of synthesis gas
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1983-11-30
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Granted: —
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Expires: 2003-11-30
Abstract
Abstract Process for the production of synthesis gas comprising the steps: a) a finely divided carbonaceous fuel is partially combusted in a gasifier, b) liquid slag is removed from the bottom of the gasifier, c) hot crude synthesis gas containing entrained slag droplets is removed from the top of the gasifier and passes upwards through a radiation chamber where it is cooled, d) the gas is passed upwards through a superheater to cool it further, e) the flow of the gas is reversed in a pipe connecting the superheater with an evaporator f) the gas is passed downwards through the evaporator, to cool it still further, g) slag particles are separated from the cooled crude synthesis gas. Apparatus for carrying out the process described hereinbefore.
Inventors
- 👤 Günter Klaus Eckstein
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 09:31
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/466; C10J3/48; C10J3/485; C10J3/72; C10J3/86; C10K; C10K1/00; C10K1/02; C10K1/026; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/18; C10J2300/1846
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
A process for the production of synthesis gas characterized by the following steps: a) a finely divided carbonaceous fuel is partially can- busted with an oxygen-containing gas at elevated temperature and pressure in a gasifier, b) liquid slag is removed from the bottom of the gasifier, c) hot crude synthesis gas containing entrained slag droplets is removed from the top of the gasifier and passed upwards through a radiation chamber where it is cooled, the slag droplets being solidified, d) the crude synthesis gas is passed upwards through a superheater to cool it further, e) the flow of the crude synthesis gas is reversed in a pipe connecting the superheater with an evaporator, f) the crude synthesis gas is passed downwards through the evaporator, to cool it still further, g) slag particles are separated from the cooled crude synthesis gas.
Claim 2
Dependent Claim
140 words
A process for the production of synthesis gas characterized by the following steps: a) a finely divided carbonaceous fuel is partially can- busted with an oxygen-containing gas at elevated temperature and pressure in a gasifier, b) liquid slag is removed from the bottom of the gasifier, c) hot crude synthesis gas containing entrained slag droplets is removed from the top of the gasifier and passed upwards through a radiation chamber where it is cooled, the slag droplets being solidified, d) the crude synthesis gas is passed upwards through a superheater to cool it further, e) the flow of the crude synthesis gas is reversed in a pipe connecting the superheater with an evaporator, f) the crude synthesis gas is passed downwards through the evaporator, to cool it still further, g) slag particles are separated from the cooled crude synthesis gas.
Claim 3
Dependent Claim
36 words
A process as claimed in claim 1, characterized in that the hot crude synthesis gas leaves the top of the gasifier flowing substantially vertically upwards at an average linear velocity ranging from 1 to 15 m/s.
Claim 4
Dependent Claim
35 words
A process as claimed in any one or more of the preceding claims, characterized in that cold clean gas, steam and/or water is injected into the hot crude gas leaving the top of the gasifier.
Claim 5
Dependent Claim
40 words
A process as claimed in any one or more of the preceding claims, characterized in that the hot crude synthesis gas flows substantially vertically upwards through the radiation chamber at an average linear velocity ranging from 1 to 15 m/s.
Claim 6
Dependent Claim
37 words
A process as claimed in any one or more of the preceding claims, characterized in that the hot crude synthesis gas is cooled in the radiation chamber to a temperature in the range from 600 to 1200°C.
Claim 7
Dependent Claim
38 words
A process as claimed in any one or more of the preceding claims, characterized in that the crude synthesis gas flows substantially vertically upwards through the superheater at an average linear velocity ranging from 3 to 15 m/s.
Claim 8
Dependent Claim
35 words
A process as claimed in any one or more of the preceding claims, characterized in that the crude synthesis gas is cooled in the superheater to a temperature in the range from 400 to 600°C.
Claim 9
Dependent Claim
38 words
A process as claimed in any one or more of the preceding claims, characterized in that the crude synthesis gas flows substantially vertically downwards through the evaporator at an average linear velocity ranging from 3 to 15 m/s.
Claim 10
Dependent Claim
35 words
A process as claimed in any one or more of the preceding claims, characterized in that the crude synthesis gas is cooled in the evaporator to a temperature in the range from 200 to 350°C.
Claim 11
Independent Claim
215 words
An apparatus for carrying out the process as claimed in any one or more of the preceding claims, characterized in that the apparatus comprises the following components: a) a vertical cylindrical outer pressure shell containing a water bath for catching and solidifying liquid slag and comprising an inlet for water and an outlet for solidified slag in water and above the water bath a water tube wall structure comprising an outlet for slag at the bottom and an outlet for crude synthesis gas at the top, b) a gasifier defined by the lower part of the water tube wall structure, c) a radiation chamber defined by an intermediate part of the water tube wall structure, d) a superheater defined by the upper part of the water tube wall structure and comprising an outlet for crude synthesis gas, e) a vertical cylindrical evaporator positioned next to the vertical cylindrical pressure shell, comprising an inlet and an outlet for crude synthesis gas and a number of tube banks for the evaporation of water, f) a pipe connecting the top of the vertical cylindrical outer pressure shell with the top of the evaporator, g) means for separating slag particles from the cooled crude synthesis gas, which means are connected by a pipe with the bottom of the evaporator.
References Cited (Backward Citations)
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