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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2. Отображено 2.
12-07-2018 дата публикации

MINIMIZING COKE FORMATION IN A HYDROCARBON CRACKER SYSTEM

Номер: US20180195008A1
Автор: BELFADHEL Hatem, Iliyas Abduljelil, Karime Mustapha, Rampure Mohanrao
Принадлежит:

The presently disclosed subject matter relates to an improved system for hydrocarbon cracking. In a specific non-limiting embodiment, a hydrocarbon cracker system can include one or more furnace tubes having a plurality of indentations disposed thereon, where the indentations do not project into the interior of the furnace tube. 1. A hydrocarbon cracker system comprising one or more reactor tubes with an inner surface having a plurality of indentations disposed thereon , wherein the indentations do not project into the interior of the reactor tube.2. The system of claim 1 , wherein the plurality of indentations minimizes coke formation.3. The system of claim 1 , wherein the indentations have a depth of about 0.2 mm to about 1.0 mm.4. The system of claim 1 , wherein the indentations have a depth of about 0.2 mm to about 0.5 mm.5. The system of or claim 1 , wherein the depth of the indentations vary.6. The system of claim 1 , wherein the indentations are formed as an integral part of the reactor tube.7. The system of claim 1 , wherein the indentations are distributed uniformly along the length of the inner surface of the reactor tube.8. The system of claim 1 , wherein the indentations are arranged in parallel rows claim 1 , in non-parallel rows claim 1 , in branching patterns claim 1 , in a staggered pattern claim 1 , in circular patterns or combinations thereof.9. The system of claim 1 , wherein the indentations are rectangular claim 1 , oval claim 1 , star-shaped claim 1 , triangle claim 1 , square claim 1 , octagon claim 1 , hexagon in shape or combinations thereof.10. A hydrocarbon cracker comprising one or more reactor tubes with an inner surface having a plurality of indentations disposed thereon claim 1 , wherein the indentations do not project into the interior of the reactor tube and have a depth of about 0.2 mm to 1.0 mm.11. A furnace tube for thermal cracking of hydrocarbons comprising a tubular body defined by a wall having an exterior surface and an inner ...

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Номер записи: 1
25-06-2020 дата публикации

SYSTEMS AND METHODS FOR PYROLYSIS OF FEEDSTOCK IN CHEMICAL FURNACES

Номер: US20200199459A1
Автор: Bunama Ramsey, Rampure Mohanrao
Принадлежит:

A furnace having a convection section with convection tubes in a convection compartment is disclosed. The convection tubes receive and preheat hydrocarbon feed primarily by convection of heat from hot flue gas that flows into in the convection section. The convection section additionally includes a perforated distributor plate that prevents flow channeling of the hot flue gas as it flows into the convection section. The furnace also includes a radiant section having radiant tubes in a radiant compartment. The radiant tubes are in fluid communication with the convection tubes so that preheated hydrocarbon feed flows from the convection section to the radiant section. The radiant section burns fuel and heats the preheated hydrocarbon feed primarily by radiation and from the hot flue gas, which flows from the radiant section into the convection section. 1. A furnace comprising:a convection section that comprises convection tubes disposed in a convection compartment, the convection tubes adapted to receive hydrocarbon feed and to preheat the hydrocarbon feed primarily by convection of heat from hot flue gas that flows into the convection section, the convection section comprising a perforated distributor plate adapted to prevent flow channeling of the hot flue gas as it flows into the convection section; anda radiant section that comprises radiant tubes disposed in a radiant compartment, the radiant tubes in fluid communication with the convection tubes so that preheated hydrocarbon feed flows from the convection section to the radiant section, the radiant section adapted to burn fuel and heat the preheated hydrocarbon feed primarily by radiation and from the hot flue gas, wherein the furnace is adapted so that the hot flue gas flows from the radiant section into the convection section.2. The furnace as claimed in claim 1 , further comprising a stack section for receiving cooled flue gas from the convection section and discharging the cooled flue gas to the atmosphere.3 ...

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Номер записи: 2