http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1467013-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_867508b0f6fae6187f22b47923d5c212 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-336 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-336 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-72 |
| filingDate | 1974-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1467013-A |
| titleOfInvention | Acetylenic hydrocarbons |
| abstract | 1467013 Separating acetylenic hydrocarbons TENNECO CHEMICALS Inc 3 Sept 1974 [19 Sept 1973] 38492/74 Heading C5E Diacetylene and vinylacetylene are separated from a hydrocarbon pyrolysis gas containing 1-10 mol. per cent of such compounds by selective adsorption on activated carbon, the surface of which has been saturated, before contact with the pyrolysis gas, with an inert non- explosive compound having carbon adsorption characteristics similar to those of diacetylene and vinylacetylene, the adsorbed C 4 acetylenic compounds being desorbed by passing a stream of inert gas through the bed of activated carbon to form a gas stream containing 30-50 mole per cent C 4 acetylenic compounds in the inert gas. The inert non-explosive compound may be n-butane, isopentane, 2,2-dimethylpropane or ethyl chloride. Preferably the carbon is pretreated with 1-5% of n-butane in N 2 and is cooled to 25-60 C. before contact with the pyrolysis gas, or is treated with liquid n-butane which is allowed to evaporate thereby cooling the carbon. The pyrolysis gas may mixed with 30-70 wt. per cent of the inert compound before contact with the pre-treated carbon. The process may be adapted to separate C 3 and C 4 acetylenic compounds by passing the pyrolysis gas through two beds of activated carbon in series only the first of which has been pre-treated with the inert compound, the C 4 acetylenic compound being adsorbed on the first bed and the C 3 hydrocarbons (methylacetylene and alkylene) passing through the first bed but being adsorbed on the second bed. The inert gas used for desorbing the adsorbed acetylenic compounds may be steam or N 2 saturated with methylene chloride. |
| priorityDate | 1973-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.