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1. (WO2018108066) PROCESS FOR SEPARATING AND RECYCLING REFINERY DRY GAS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/108066 International Application No.: PCT/CN2017/115593
Publication Date: 21.06.2018 International Filing Date: 12.12.2017
IPC:
B01D 53/047 (2006.01) ,B01D 53/053 (2006.01) ,B01D 53/00 (2006.01) ,C07C 7/12 (2006.01) ,C01B 3/50 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
02
by adsorption, e.g. preparative gas chromatography
04
with stationary adsorbents
047
Pressure swing adsorption
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
02
by adsorption, e.g. preparative gas chromatography
04
with stationary adsorbents
047
Pressure swing adsorption
053
with storage or buffer vessel
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
12
by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3
Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
50
Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
Applicants:
中国石油化工股份有限公司 CHINA PETROLEUM & CHEMICAL CORPORATION [CN/CN]; 中国北京市 朝阳区朝阳门北大街22号 No.22, Chaoyang Gate, Chaoyang District Beijing 100027, CN
北京信诺海博石化科技发展有限公司 BEIJING SINO-HYPRO PETROCHEMICAL TECH. CO.LTD. [CN/CN]; 中国北京市 朝阳区光华路15号院1号楼四层401内B177室 Room 401, No.1, Building No. 15, Guanghua Road, Chaoyang District Beijing 100026, CN
Inventors:
张国瑞 ZHANG, Guorui; CN
张涧 ZHANG, Jian; CN
后磊 HOU, Lei; CN
罗运柏 LUO, Yunbai; CN
胡小鹏 HU, Xiaopeng; CN
徐宝岩 XU, Baoyan; CN
徐朋朋 XU, PengPeng; CN
涂安斌 TU, Anbin; CN
刘旭东 LIU, Xudong; CN
杨洪川 YANG, Hongchuan; CN
陈亚洲 CHEN, Yazhou; CN
Agent:
北京志霖恒远知识产权代理事务所(普通合伙) BEIJING ZHILIN HENGYUAN IP FIRM; 中国北京市 东城区安定门东大街28号1号楼D单元1509号 Room 1509, Unit D, Building 1, No. 28 Andingmen East Street, Dongcheng District Beijing 100007, CN
Priority Data:
201611149662.013.12.2016CN
Title (EN) PROCESS FOR SEPARATING AND RECYCLING REFINERY DRY GAS
(FR) PROCÉDÉ DE SÉPARATION ET DE RECYCLAGE DE GAZ SEC DE RAFFINERIE
(ZH) 一种炼厂干气的分离回收工艺
Abstract:
(EN) A process for separating and recycling refinery dry gas. At least a one-stage pressure swing adsorption unit is provided; at least two adsorption beds filled with an adsorbent are disposed in the one-stage pressure swing adsorption unit; the adsorption beds operate alternately according to set time sequence steps; each adsorption bed at least sequentially undergoes process steps such as adsorption, reduced pressure equalization, concentration, reverse exhaust, vacuumizing, pre-adsorption, increased pressure equalization, and final charging. Two material flows, i.e., C2+ component product gas and hydrogen-rich product gas having a C2+ component concentration of greater than 92v% and a recovery rate of greater than 92%, can be obtained after dry feed gas is separated by a pressure swing adsorption unit. Compared with the prior art, the process has simpler procedures, lower investment and operation cost, and higher yield of C2+ components and product purity; if necessary, the dry feed gas can be separated by the one-stage pressure swing adsorption unit and a two-stage pressure swing adsorption unit to obtain three material flows, i.e., C2+ component product gas, hydrogen product gas, and fuel gas.
(FR) L'invention concerne un procédé de séparation et de recyclage de gaz sec de raffinerie. Au moins une unité d'adsorption modulée en pression à un étage est prévue et au moins deux lits d'adsorption remplis d'un adsorbant sont disposés dans l'unité d'adsorption modulée en pression à un étage. Les lits d'adsorption fonctionnent en alternance selon des étapes de séquence temporelle définies et chaque lit d'adsorption subit au moins séquentiellement des étapes de traitement telles que l'adsorption, l'égalisation de pression réduite, la concentration, l'échappement inverse, la mise sous vide, la pré-adsorption, l'égalisation de pression accrue et la charge finale. Deux flux de matériau, c'est-à-dire, un gaz de produit de composant C2+ et un gaz de produit riche en hydrogène ayant une concentration de composant C2+ supérieure à 92v % et un taux de récupération supérieur à 92 %, peuvent être obtenu après que le gaz d'alimentation sec soit séparé par une unité d'adsorption modulée en pression. Par comparaison avec l'art antérieur de la technique, le procédé présente des procédures plus simples, un investissement moindre et un coût de fonctionnement, et un rendement supérieur de composants C2+ et une pureté de produit. Si nécessaire, le gaz d'alimentation sec peut être séparé par l'unité d'adsorption modulée en pression à un étage et une unité d'adsorption modulée en pression à deux étages pour obtenir trois flux de matériau, c'est-à-dire, un gaz de produit de composant C2+, un gaz de produit d'hydrogène et un gaz combustible.
(ZH) 一种炼厂干气的分离回收工艺,至少包括1段变压吸附单元,1段变压吸附单元内设置有至少2个内部装填吸附剂的吸附床,各吸附床按照设定的时序步骤交替运行,每座吸附床至少依次经历吸附、均压降、浓缩、逆放、抽真空、预吸附、均压升、终充等工艺步骤,原料干气经过1个变压吸附单元分离后,可以获得C2+组分浓度>92v%和回收率>92%的C2+组分产品气和富氢气体产品气两股物流;与现有技术相比,工艺流程更简单、投资和运行费用更低,C2+组分收率和产品纯度更高;如果需要,原料干气还可以经1段和2段两个变压吸附单元分离后,得到C2+组分产品气、氢气产品气和燃料气三股物流。
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African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)