http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8653009-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_07727a8d8820da87dd948998f622ae64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0fc40698dfd698d99746bd52faa2d969 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G29-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-524 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G29-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-528 |
| filingDate | 2008-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8c88db66c93be8258cabc2eb7bd6a82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f85d59a1e4182d18a33992015d455b13 |
| publicationDate | 2014-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8653009-B2 |
| titleOfInvention | Method for preventing the formation of calcium carboxylate deposits in the dewatering process for crude oil/water streams |
| abstract | The invention relates to the use of compounds comprising three hydrophobic groups as additives to a stream of crude oil containing carboxylic acids, in particular naphthenic acids, and salt water, to prevent the formation of calcium carboxylates when the fluid is exposed to shear forces. Preferably, the compounds are added to a crude oil/water stream containing organic acids Ca 2+ ions at a point between the well and the pressure reduction valve in the crude oil receiving station. The compounds have the formula (I) wherein hydrophobic groups R, R′, and R″ are, independently, an optionally substituted hydrocarbyl group or an optionally substituted acyl group having 4-22 carbon atoms; X is N, P═O or CR′″, wherein R′″ is H or a C1-C4 alkyl group; Y is C═O or CH 2 ; a, a′, a″ b, b′ and b″ each independently are 0 or 1, the subscript 0-1 meaning that if the subscript is 0, then the group is not present in the molecule, whereas if the subscript is 1, then the group is present in the molecule; n, n′, and n″ are, independently, zero or on average at least 1, and at most 14; the sum of n, n′, and n″ is 0 or on average at least 3, and at most 42; and m, m′, and m″ are, independently, on average 0-6, and the sum of m, m′, and m″ is 0-18. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10995257-B2 |
| priorityDate | 2007-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 112.