Delayed coking method with effect of improving liquid yield and heavy oil processing method

• Main Authors: WANG MINGDONG, JING TIE, GENG QINGGUANG, LIU SHUFANG, HOU JICHENG, WANG HONGBIN, XIAO XIANG, WANG SHAOFENG, ZHAI ZHIQING, LI XIAOCHANG, YA FEI, HOU YUBAO, WANG BAOSHI, FENG LING, ZHANG GUOKU, ZHAO YAN, WANG LONGYAN, HUANG XINLONG, WANG ZHIGANG, WANG XUE
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2018
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention relates to the field of petroleum refining and particularly relates to a delayed coking method with the effect of improving a liquid yield and a heavy oil processing method. The delayedcoking method with the effect of improving a liquid yield comprises: injecting desorbed gas into a valve on a heating furnace outlet oil gas pipe of a delayed coking device. The delayed coking methodreduces the water vapor consumption of the device and the discharge of sulfur-containing sewage and effectively reduces the energy consumption of the device. The desorbed gas or high-pressure methanegas replaces water vapor and then is processed through a coking device absorption stabilization system so that C3 and more C components can be recovered. The delayed coking method fully utilizes the surplus of the coking device absorption stabilization system, optimizes the refinery process, reduces the processing cost of separating the part of the gas and increases the economic benefits of the enterprise. The desorbed gas