http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-301059-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G47-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G47-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C1-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-20 |
| filingDate | 1928-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1930-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-301059-A |
| titleOfInvention | Improvements in the manufacture and production of valuable hydrocarbons from tars, mineral oils and like liquid hydrocarbon materials |
| abstract | 301,059. I. G. Farbenindustrie Akt.- Ges. Nov. 24, 1927, [Convention date]. Hydrogenation, destructive.-In the destructive hydrogenation of carbonaceous materials the products to be treated are passed through a series of reaction vessels, i.e. more than two, arranged one behind the other so that no appreciable cooling of the materials occurs between the vessels. Cooling is prevented by making the connections between the vessels as short as possible, by employing a high rate of flow, or by surrounding the connections with jackets containing a heating medium. By arranging the vessels in series less gas need be maintained in circulation to obtain a given speed of flow in the reaction chambers than when single vessels or vessels in parallel are used, and a single heat regenerator only is required. The initial materials may be used in the liquid or vapour state and sufficient liquid constituents are allowed to remain in the last reaction vessel to permit easy removal of the residues. Catalysts may be used either in dispersion in the treated materials or fixed in the reaction vessels. One cubic metre of brown coal tar, together with 1000 cubic metres of hydrogen (measured at atmospheric pressure) under 200 atmospheres pressure, is passed hourly through 5 reaction vessels I-V arranged in series so that one or more can be cut out for regeneration of the catalyst, the total capacity of the reaction vessels being about 1 cubic metre. The tar and hydrogen are introduced by pressure pumps A, B, and are preheated in a coil C to 410‹ C., whereupon they enter the reaction vessel I through a valve D1, and pass upwards through a fixed catalyst mass J1 consisting of molybdenum trioxide and zinc oxide. The products pass to the next vessel II through insulated pipes R1, S1 and in a similar fashion through the remaining vessels, the temperature rising in each vessel by about 5-10‹. The final products pass through a condenser M into a stripping vessel N, from which the liquid products are withdrawn through a valve P, while the gases are recirculated by a pump Q. Liquid reaction products may be removed from each vessel separately through valves G<1>-G<5>. The catalysts in the vessel I may be revivified by isolating this vessel by closing valves D1 Ll and opening valve H1, removing the contents through valve G1, and blowing in air or nitrogen through valve L1. Specifications 213,295 and 256,964 are referred to. |
| priorityDate | 1927-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.