http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101747131-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c121de80e040e8d4b9a2b93c2e2be83c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B3-50 |
| filingDate | 2008-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e11c32c35b99461760732e0230183b33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99937e3c3aa4e70b17078cce143263a8 |
| publicationDate | 2013-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101747131-B |
| titleOfInvention | Method for extracting hydrogen and methane from coke oven gas by utilizing membrane separation and low-temperature rectification |
| abstract | The invention relates to a method for extracting hydrogen and methane from coke oven gas by utilizing membrane separation and low-temperature rectification, comprising: the coke oven gas is compressed to be 0.12-0.15MPa, after the temperature is cooled to 20-40 DEG C, sulphur, benzene and tar are removed; the coke oven gas is compressed to be 2.2-4.0MPa, H2S is removed by hydrolysis; CO2 is removed by a N-methyldiethanolamine wet process, sulfide, mercury, moisture and compounds with more than five carbons are removed by an adsorptive process; and then the coke oven gas enters in a membrane separation device under 1.5-4.0MPa at 20-60 DEG C, hydrogen is separated from CH4, N2 and CO, and the separated hydrogen is compressed to be 2.0-5.0MPa and enters in a liquid hydrogen device to obtain the liquid hydrogen; the coke oven gas enters into a changing-over plate heat exchanger and the residual substances with above -50 DEG C of boiling point in the coke oven gas are removed by reducing the temperature; the coke oven gas enters in a low-temperature rectification tower, and liquid methane containing C1, C2 and C3 is extracted from the tower bottom, the purity can reach 98 percent, the content of the carbon monoxide is less than 05 percent, and the liquid methane is heated to be gaseous methane. |
| priorityDate | 2008-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.