摘要:
A fluidized catalytic reactor system cycles from 0.05-5% of catalyst at a time through a rejuvenation unit to be heated in the presence of oxygen to maintain catalyst activity. The use of the rejuvenation unit that may be 2% of the size of the main catalyst regeneration unit allows for reduction in equipment size and in catalyst inventory. The catalyst that is sent to the rejuvenation unit may be spent catalyst but may be partially or fully regenerated catalyst. The rejuvenation unit may be heated by combusting fuel or by hot flue gas.
摘要:
Methods and systems are disclosed for upgrading a paraffinic feed to gasoline. The system includes a fluidized cracker receiving a paraffin-containing feedstream and producing an olefin product therefrom, the olefin product comprising C4 olefins; a separation system receiving the olefinic product and separating an olefin-containing feed therefrom, the olefin-containing feed having an olefin content of at least about 10 wt %; and an oligomerization reaction system receiving the olefin-containing feed and exposing the olefin-containing feed to a conversion catalyst under first effective conversion conditions to form an oligomerized olefin effluent comprising C5+ olefinic compounds.
摘要:
A hydroisomerization catalyst of the present invention is obtained by calcining a catalyst composition containing an ion-exchanged molecular sieve or a calcined product thereof, and at least one metal selected from the group consisting of metals of Groups 8 to 10 in Periodic Table of the elements, molybdenum and tungsten, carried on the ion-exchanged molecular sieve or the calcined product thereof, wherein the ion-exchanged molecular sieve is obtained by ion-exchanging a molecular sieve, which includes nanocrystals having a pore structure of ten-membered rings or eight-membered rings and having a ratio of the pore volume to the external surface area ([pore volume]/[external surface area]) of 2.0×10−4 mL/m2 to 8.0×10−4 mL/m2 and contains an organic template, in a solution containing a cationic species.
摘要翻译:通过煅烧含有离子交换分子筛或其煅烧产物的催化剂组合物和选自元素周期表第8〜10族金属中的至少一种金属,得到本发明的加氢异构化催化剂 ,钼和钨载带在离子交换分子筛或其煅烧产物上,其中离子交换分子筛是通过离子交换分子筛获得的,分子筛包括具有十元环或八元孔结构的纳米晶体 具有2.0×10 -4 mL / m 2的孔体积与外表面积([孔体积] / [外表面积])的比例为8.0×10 -4 mL / m 2,并且含有有机物 模板,在含有阳离子物质的溶液中。
摘要:
The invention provides a process for the preparation of an olefinic product, comprising:(a) reacting an oxygenate feedstock, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of reaction effluent stream; (c) further rapidly cooling the reaction effluent stream to a temperature lower than the dew point temperature of the reaction effluent stream by direct injection of an aqueous liquid into the reaction effluent stream, to form a first quench effluent stream; and (d) separating the first quench effluent stream into a first liquid quench effluent stream and a first gaseous quench effluent stream, comprising the olefinic product.
摘要:
Method for making base oil, comprising transporting a height of greater than 7.5 meters of granular solid wax particles comprising a highly paraffinic wax with defined boiling points and a powder coating to a distant location, and hydroprocessing the transported wax. Also, a method comprising: a) selecting a Fischer-Tropsch wax having a broad boiling range, b) powder coating the wax, and c) transporting and d) hydroprocessing the wax. Also, a method comprising forming inorganic powder coated granular solid wax particles that withstand heavy loads without clumping or sticking together from highly paraffinic wax, wherein the amount of powder is between 0.1 and 5 wt %, transporting, and hydroprocessing the solid wax particles.
摘要:
A granular solid wax particle comprising a highly paraffinic wax having a low T10 boiling point less than 427° C. and an inorganic powder coating; optionally with a layer of higher boiling wax over the highly paraffinic wax having a low T10 boiling point, and an inorganic powder coating over the layer of higher boiling wax. In separate embodiments, a highly paraffinic wax having a T10 boiling point less than 427° C. or a highly paraffinic wax having a needle penetration greater than 3 mm/10 at 25° C. is coated with a powder that adsorbs the wax without being encapsulated by the wax in a hot drop wax test. Also, a process for transporting highly paraffinic wax having a T10 boiling point less than 427° C. as granular solid wax particles. And, a method of making base oil from granular solid wax particles transported from a distant location.
摘要:
A process for preparing branched alkyl aromatic hydrocarbons, which process comprises contacting branched olefins with an aromatic hydrocarbon under alkylating conditions, which branched olefins have been obtained by a process which comprises dehydrogenating an isoparaffinic composition over a suitable catalyst which isoparaffinic composition has been obtained by hydrocracking and hydroisomerization of a paraffinic wax and which isoparaffinic composition comprises paraffins having a carbon number in the range of from 7 to 35, of which paraffins at least a portion of the molecules is branched, the average number of branches per paraffin molecule being at least 0.5 and the branching comprising methyl and optionally ethyl branches; a process for preparing (branched-alkyl)arylsulfonates, comprising sulfonating branched alkyl aromatic hydrocarbons which branched alkyl aromatic hydrocarbons have been prepared by the said process for preparing branched alkyl aromatic hydrocarbons; and branched alkyl aromatic hydrocarbon compositions and (branched-alkyl)arylsulfonate compositions which are obtainable by the processes so defined.
摘要:
A process for preparing branched alkyl aromatic hydrocarbons, which process comprises contacting branched olefins with an aromatic hydrocarbon under alkylating conditions, which branched olefins have been obtained by a process which comprises dehydrogenating an isoparaffinic composition over a suitable catalyst which isoparaffinic composition has been obtained by hydrocracking and hydroisomerization of a paraffinic wax and which isoparaffinic composition comprises paraffins having a carbon number in the range of from 7 to 35, of which paraffins at least a portion of the molecules is branched, the average number of branches per paraffin molecule being at least 0.5 and the branching comprising methyl and optionally ethyl branches; a process for preparing (branched-alkyl)arylsulfonates, comprising sulfonating branched alkyl aromatic hydrocarbons which branched alkyl aromatic hydrocarbons have been prepared by the said process for preparing branched alkyl aromatic hydrocarbons; and branched alkyl aromatic hydrocarbon compositions and (branched-alkyl)arylsulfonate compositions which are obtainable by the processes so defined.
摘要:
A process for the production of ethylene-based polymers from waste plastics feedstocks includes the steps in this order of: providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock; providing a hydrocarbon stream B; supplying a feed C including a fraction of the hydrocarbon stream A and a fraction of the hydrocarbon stream B to a thermal cracker furnace having cracking coil(s); performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D; supplying the cracked hydrocarbon stream D to a separation unit to obtain a product stream E containing ethylene; supplying the product stream E to a polymerisation reactor; and performing a polymerisation reaction to obtain an ethylene-based polymer; wherein in step (d): the coil outlet temperature is ≥800 and ≤870° C.; and the weight ratio of steam to feed C is >0.3 and