CN109927850A - A kind of methanol from natural gas and methanol storage handler of floating - Google Patents

A kind of methanol from natural gas and methanol storage handler of floating Download PDF

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Publication number
CN109927850A
CN109927850A CN201910203194.8A CN201910203194A CN109927850A CN 109927850 A CN109927850 A CN 109927850A CN 201910203194 A CN201910203194 A CN 201910203194A CN 109927850 A CN109927850 A CN 109927850A
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China
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methanol
natural gas
cabin
floating body
ship type
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CN201910203194.8A
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Chinese (zh)
Inventor
满堂泉
曹振岩
胡春孝
葛秀文
周南
华而实
钟兴锦
黄兹奕
庄才民
刘亮
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Shanghai Wison Offshore and Marine Co Ltd
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Shanghai Wison Offshore and Marine Co Ltd
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Priority to CN201910203194.8A priority Critical patent/CN109927850A/en
Publication of CN109927850A publication Critical patent/CN109927850A/en
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Abstract

The invention patent relates to oil gas deep process technology fields, it can be applied to the methanol from natural gas and methanol storage handler of the floating of rivers,lakes and seas, including the start up boilers device and methanol technics device processed on ship type floating body and its deck, methanol technics device processed successively includes purifying device for natural gas, natural gas reforming unit and methanol-fueled CLC and rectifier unit according to upstream and downstream sequence.Purifying device for natural gas front end connects natural gas line, the outlet of start up boilers device is connect with natural gas reforming unit, desalination plant is equipped in ship type floating body, the outlet of desalination plant is connected with removal bitter and fishiness, the outlet of removal bitter and fishiness is connect with natural gas reforming unit, methanol intermediate products cabin and methanol product cabin are additionally provided in ship type floating body, the output end of methanol synthesizer is connect with methanol intermediate products cabin, is connected with methanol rectifying system between methanol intermediate products cabin and methanol product cabin.Natural gas of the present invention is clean energy resource, and no dust emission protects environment.

Description

A kind of methanol from natural gas and methanol storage handler of floating
Technical field
The invention patent relates to oil gas deep process technology field is arrived, the natural gas first of the floating of rivers,lakes and seas can be applied to Alcohol and methanol store up handler.
Background technique
Methanol is important derived energy chemical raw material, is widely used in chemical production, methanol from natural gas production technology It is a kind of maturation, industrialized production process, compares ammonia from coal technique, methanol production process from natural gas has pollution Small, low power consumption and other advantages use natural gas to produce methanol product one for raw material in particular with the fast development of gas industry It is directly a kind of methanol process of first choice, there is competitiveness very much on the market.
The whole world increases the demand of methanol year by year, and 2010~2015, in Coal Chemical Industry in China and North America shale gas Under the influence of industry is fast-developing, the production capacity of global methanol persistently increases to 1.2 hundred million tons/year by 81,140,000 tons/year.China is Methanol demands big country, it is contemplated that the consumption demand in the whole world 50%, which increases, before the year two thousand twenty will all come from China, and the contribution of north America region Rate is only 2.6%, and the area such as Europe, South America tomorrow requirement increases also not significant, it means that it is net that North America will become once again methanol Exported country, and become the important methanol import sources in countries and regions such as China and West Europe.North America Middle East methanol mainly with Natural gas is raw material, since gas cost is low, has cost advantage under low oil price.
China is due to the limitation to Natural Gas Methanol policy, still mainly using coal as raw material methanol, in China's first in 2015 In raw polyol structure, coal accounts for about 71%, and natural gas is only 15%.The existing methanol device in China is concentrated mainly on North China, East China, west Methanol is transported to Coastal East China and needs to pay great number freight charges by the hinterland such as north, thus China coast there is still a need for into The a large amount of methanol of mouth.Using China East China as target market, import use megaton methanol device produce with natural gas Methanol cost price for raw material is about 125~240 beauty yuan/ton, and is transported by the self-produced methanol in the country of raw material of coal in the same manner The cost price in area is 367~377 beauty yuan/ton, and import has significant advantage by the methanol cost of raw material of natural gas.This is sea Opportunity to develop is brought by the inexpensive methanol project of raw material of natural gas outside.
Traditional methanol from natural gas factory is located at inland, and the whole world is land at present has up to a hundred factories and running, most Mass production scale is annual up to 2,000,000 tons, but there is no the floating methanol from natural gas process units for being arranged in rivers,lakes and seas.
Summary of the invention
In order to solve the problems, such as that floating methanol from natural gas device vacancy of the existing technology, the present invention provide a kind of floating The methanol from natural gas and methanol of formula store up handler.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of methanol from natural gas and methanol storage handler of floating, including ship type floating body and the first that ship type floating body is arranged in Start up boilers device and methanol technics device processed on plate, the methanol technics device processed successively include according to upstream and downstream sequence Purifying device for natural gas, natural gas reforming unit, methanol synthesizer and methanol rectifying system, the purifying device for natural gas Front end is connected with natural gas line, and the outlet of the start up boilers device is connect with natural gas reforming unit,
It is equipped with desalination plant inside the ship type floating body, the outlet end of the desalination plant is connected with de- The outlet of salt water installations, the removal bitter and fishiness is connect with natural gas reforming unit, is additionally provided with inside the ship type floating body The output end in methanol intermediate products cabin and methanol product cabin, the methanol synthesizer is connect with methanol intermediate products cabin, institute Cabin is externally connected to methanol rectifying system among the methanol stated, and the output end of the methanol rectifying system and methanol product cabin connect It connects.
Further, the natural gas line is also connect with start up boilers device, and the natural gas in natural gas line is also Fuel as start up boilers device.
Further, it is additionally provided in the ship type floating body for providing the recirculated cooling water device of cooling source.
Further, power generator, the outlet end of the purifying device for natural gas are additionally provided in the ship type floating body Also it is connect with power generator.
Further, it is additionally provided with goods pump room in the ship type floating body, has and methanol product cabin in the goods pump room First output channel of connection and the second output channel for connecting with methanol intermediate products cabin are set on first output channel There is refined methanol delivery pump, second output channel is equipped with crude carbinol delivery pump.
Further, the desalination plant and removal bitter and fishiness are respectively connected with the discharge pipe for strong brine to be discharged Road.
The utility model has the advantages that
(1) natural gas energy resource of the present invention is clean energy resource, and discharge is all substantially water and carbon dioxide, almost without Nitrogen oxides and sulfide, it is of far-reaching significance to environmental protection there are no dust discharge;
(2) present invention is included provides electric power by the generating set of raw material of natural gas, accesses without electric power on the bank, technology can It leans on, is stable, start-stop is rapid;
(3) present invention can make full use of the storage capacity of floating body itself, store methanol without additional storage tank, save throwing Rate are used;
(4) present invention is fetched water on the spot to meet production requirement, and water resource is sufficient, and cost of water treatment is low, is not needed external light Water input further decreases investment cost and running cost;
(5) present invention substitutes land terminal using surface unit, not only has cost advantage, and far from power plant, work Industry area or dense population areas, it is safer;
(6) integrated level of the present invention is high, and area occupied is small, and can carry out water surface towage with the need to designated place, flexibly It is convenient;
(7) all main bodys of the present invention are built debugging efforts and can be completed in shipyard, and then towage to designated place, is applied The work such as work debugging do not influence local periphery living environment.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the methanol from natural gas of floating and the structure diagram of methanol storage handler.
Wherein, 100, ship type floating body, 101, purifying device for natural gas, 102, start up boilers device, 103, natural gas conversion Device, 104, methanol synthesizer, 105, methanol rectifying system, 106, power generator, 107, recirculated cooling water device, 108, sea Water desalination apparatus, 109, removal bitter and fishiness, 110, goods pump room, 111, methanol intermediate products cabin, 112, methanol product cabin, 113, thick Methanol delivery pump, 114, refined methanol delivery pump.
Specific embodiment
Such as Fig. 1, a kind of methanol from natural gas and methanol storage handler of floating, including ship type floating body 100 are with setting in ship Start up boilers device 102 and methanol technics device processed on the deck of type floating body 100, methanol technics device processed are suitable according to upstream and downstream Sequence successively includes purifying device for natural gas 101, natural gas reforming unit 103, methanol synthesizer 104 and methanol rectifying system 105,101 front end of purifying device for natural gas is connected with natural gas line, and the outlet of start up boilers device 102 and natural gas conversion fill 103 connections are set,
Desalination plant 108 is equipped with inside ship type floating body 100, the outlet end of desalination plant 108 is connected with desalination The outlet of water installations 109, removal bitter and fishiness 109 is connect with natural gas reforming unit 103, is additionally provided with first inside ship type floating body 100 Alcohol intermediate products cabin 111 and methanol product cabin 112, the output end of methanol synthesizer 104 and methanol intermediate products cabin 111 connect It connects, cabin is externally connected to methanol rectifying system 105, the output end of methanol rectifying system 105 and methanol product cabin 112 among methanol Connection.
Natural gas line is also connect with start up boilers device 102, and the natural gas in natural gas line is also used as start up boilers The fuel of device 102.
It is additionally provided in ship type floating body 100 for providing the recirculated cooling water device 107 of cooling source.
Be additionally provided with power generator 106 in ship type floating body 100, the outlet end of purifying device for natural gas 101 also with power generator 106 connections.
It is additionally provided with goods pump room 110 in ship type floating body 100, there is first connect with methanol product cabin 112 in goods pump room 110 Output channel and the second output channel connecting with methanol intermediate products cabin 111, the first output channel are conveyed equipped with refined methanol Pump 114, the second output channel are equipped with crude carbinol delivery pump 113.
Desalination plant 108 and removal bitter and fishiness 109 are respectively connected with the discharge line for strong brine to be discharged.
The each technique unit module arrangement of methanol production on the floating body, is produced methanol by raw material of natural gas by the present invention Product simultaneously provides storage and outer defeated surface unit.
The device include ship type floating body and the methanol product cabin 112 arranged in hull, methanol intermediate products cabin 111, Goods pump room 110, generator cabin and public work device cabin etc.;Methanol from natural gas master is arranged on the deck of ship type floating body Process unit, start up boilers device 102 and other auxiliary equipment.Wherein the main process unit of methanol from natural gas specifically includes that day Right air purifying apparatus 101, natural gas reforming unit 103, methanol synthesizer 104 and methanol rectifying system 105, public work system System (includes removal bitter and fishiness 109, recirculated cooling water device 107, desalination plant 108, sewage-treatment plant, instrument air And nitrogen system etc.) and auxiliary life and production facility.
According to actual outer for public work resource, the methanol from natural gas production technology can be converted using steam Work is produced applied by the land methanol from natural gas devices such as technique, two sections of (combination) conversion process or self-heating conversion process Skill.
Natural gas reforming unit 103, methanol synthesizer 104, methanol rectifying system in methanol production process from natural gas device 105 can be configured by actual product demand, and annual output is up to ten thousand tons of 5-300.
Offshore natural gas receiving platform, the soft rigid arm of offshore can be passed through from land or seabed natural-gas transfer pipeline The mode of (Soft Yoke) or single point mooring (inner cupola, outer capstan head), is connected to above this device.
It is disposed with purifying device for natural gas 101 on the deck of ship type floating body 100, configures as needed, which can locate Well head gas or pipeline gas are managed, treated, and natural gas can be directly used for production methanol and power generation.
Founding the factory without under outer oxygen resource situation, methanol production process from natural gas uses Steam Reforming Process or modified Close-coupled Steam Reforming Process.
In order to ensure device can be operated normally in the case where hull shakes operating condition, the methanol synthesizer 104 can be Methanol-fueled CLC device, methanol-fueled CLC device take hot mode can be using air cooling or water cooling;The drum of methanol-fueled CLC device can be using certainly Circulation or forced circulation.
In order to ensure device can be operated normally in the case where hull shakes operating condition, the methanol rectifying system 105 is rectifying Tower, all rectifying columns use swing packed tower.
Be disposed with defeated platform outside methanol on the deck of ship type floating body 100, methanol cargo ship can directly berthing in this device Go up and pass through the first that this platform is transferred to the methanol in methanol product cabin 112 or methanol intermediate products cabin 111 methanol cargo ship In alcohol holding bay;Methanol product can also be transferred to methanol tank on the bank by this platform and store or transport.
Water resource needed for methanol production process from natural gas is all gathered materials on the spot, and is put into and is given birth to after local water source is handled It produces.Desalination plant 108 can using reverse osmosis technology, low temperature multiple-effect distillation technology or multi-stage flash evaporation technology etc. to seawater into Row desalt processing;Removal bitter and fishiness 109 can be de- using productions such as reverse osmosis membrane technology, ion-exchange process or electrodialytic techniques Salt water is to meet the needs of technique production.
The device extendable functions are had stable political situation industrial water to the offers lives such as coastal small towns, facing-port industry area and island, city.
Ship type floating body 100 can use a variety of Mooring Arrangements as the case may be, can pass through single point mooring or multiple spot system The mode mooring of pool is in far-reaching sea;Through hawser and mooring winch mooring on quayside;It can also be using floating in the ship type 100 liang of topsides of body arrange 4-6 guide pile, are used for this device of mooring;Bottom-sitting type mounting means, this device of mooring can also be used.
The ship type floating body 100 can be designed to the barge form for being suitable for pier mooring, sitting bottom installation according to demand, Or the ship type suitable for single-point or multipoint mooring.
Methanol production process from natural gas converts scheme using steam, and the mature technology is reliable, and process is shorter, does not need to match Cover air separation unit.
Methanol from natural gas process units realizes System steam self-balancing, nothing by the energy-optimised matching inside process Need outer confession or outer defeated steam, it is only necessary to configure start up boilers and meet the stage steam demand that goes into operation.
Power generator 106 uses natural gas for main fuel, and driving double fuel engine unit generates electricity, and is entire floating Electric power needed for device provides.It can also be sent out according to different requirements, using single gas driven generator group or diesel generating set Electricity.
Surface unit production and required water of living all are derived from seawater, by seawater coarse filter device, sea water desalination Device 108 and removal bitter and fishiness 109 carried out after handling using.
Ship type floating body 100 uses dumb barge form, and simple with structure, manufacturing cost is low, and inner space is big, just In equipment pipe arrangement the advantages that.
Surface unit according to the present invention includes ship type floating body 100 and floating body deck top two spaces.In floating body first Plate upper space is disposed with the main technique device of start up boilers 102 and methanol from natural gas: purifying device for natural gas 101, day Right gas reforming unit 103, methanol synthesizer 104 and methanol rectifying system 105.It is defeated that natural gas outside battery limit (BL) is divided into two-way It is sent to purifying device for natural gas 101 and start up boilers 102.Start up boilers 102 only go into operation stage running in device, are with natural gas Fuel combustion generates the steam that goes into operation, and the steam that goes into operation is conveyed to natural gas reforming unit 103.It is removed through purifying device for natural gas 101 Natural gas after a small amount of sulfide will be divided into two-way, be conveyed to power generator 106 all the way and be used as main fuel combustion power generation, power generation The electric power that device 106 generates can satisfy the demand of entire surface unit;The purified natural pneumatic transmission of another way to natural gas turns Makeup sets 103, and in natural gas reforming unit 103, steam reforming reaction occurs for purified natural gas, synthesis gas is generated, through cooling It is sent after liquid separation to methanol synthesizer 104;It reacts after synthesis gas is pressurized in methanol synthesizer 104 and generates crude carbinol production It is sent after product to methanol intermediate products holding bay 111;Crude carbinol from intermediate products holding bay 111 is sent after being overpressurized to methanol Rectifier unit 105 removes the trace impurity and water in crude carbinol by rectification process, obtains refined methanol product and be delivered to methanol Product cabin 112.
For the present invention using seawater as recirculated cooling water, seawater is divided into two-way, and a part enters recirculated cooling water device 107 Sea is drained back into after providing cooling capacity for device, another part enters removal bitter and fishiness 109 after the processing of desalination plant 108, The desalted water of generation is sent to natural gas reforming unit 103 and participates in production.The extra fresh water after the processing of desalination plant 108 Recirculated cooling water device 107 can be entered and participate in cooling.The strong brine pair that desalination plant 108 and removal bitter and fishiness 109 generate Environmental nonpollution can direct emission.Crude carbinol delivery pump 113 and refined methanol delivery pump 114 are disposed in goods pump room 110.Two Pump can extract methanol from methanol intermediate products cabin 111 and methanol product cabin 112 respectively and convey outward.
Recirculated cooling water device 107 can be by groups such as seawater/fresh water heat exchanger, low temperature fresh water circulating pump and thermostat valves At seawater/fresh water heat-exchange system.There are many equipment to need to use the light of closed cycle above floating methanol from natural gas device Water is cooled down, and fresh water passes through seawater/fresh water heat-exchange system again, cools down fresh water with the seawater of open circulation, and then Connect the cooling realized to equipment.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.

Claims (6)

1. the methanol from natural gas and methanol of a kind of floating store up handler, it is characterised in that: including ship type floating body (100) and setting Start up boilers device (102) and methanol technics device processed on the deck of ship type floating body (100), the methanol technics processed dress Setting according to upstream and downstream sequence successively includes purifying device for natural gas (101), natural gas reforming unit (103), methanol synthesizer (104) and methanol rectifying system (105), the purifying device for natural gas (101) front end is connected with natural gas line, described The outlet of start up boilers device (102) is connect with natural gas reforming unit (103),
Desalination plant (108) are equipped with inside the ship type floating body (100), the desalination plant (108) goes out Mouth end is connected with removal bitter and fishiness (109), and the outlet and natural gas reforming unit (103) of the removal bitter and fishiness (109) are even It connects, is additionally provided with methanol intermediate products cabin (111) and methanol product cabin (112), the first inside the ship type floating body (100) The output end of alcohol synthesizer (104) is connect with methanol intermediate products cabin (111), the methanol intermediate products cabin external connection Have methanol rectifying system (105), the output end of the methanol rectifying system (105) is connect with methanol product cabin (112).
2. the methanol from natural gas and methanol of a kind of floating according to claim 1 store up handler, it is characterised in that: described Natural gas line connect with start up boilers device (102), the natural gas in natural gas line is also used as start up boilers device (102) fuel.
3. the methanol from natural gas and methanol of a kind of floating according to claim 1 store up handler, it is characterised in that: described Ship type floating body (100) in be additionally provided with recirculated cooling water device (107) for providing cooling source.
4. the methanol from natural gas and methanol of a kind of floating according to claim 1 store up handler, it is characterised in that: described Ship type floating body (100) in be additionally provided with power generator (106), the outlet end of the purifying device for natural gas (101) also with hair Electric installation (106) connection.
5. the methanol from natural gas and methanol of a kind of floating according to claim 1 store up handler, it is characterised in that: described Ship type floating body (100) in be additionally provided with goods pump room (110), have in the goods pump room (110) and methanol product cabin (112) even The first output channel connect and the second output channel being connect with methanol intermediate products cabin (111), first output channel It is equipped with refined methanol delivery pump (114), second output channel is equipped with crude carbinol delivery pump (113).
6. the methanol from natural gas and methanol of a kind of floating according to claim 1 store up handler, it is characterised in that: described Desalination plant (108) and removal bitter and fishiness (109) be respectively connected with the discharge line for strong brine to be discharged.
CN201910203194.8A 2019-03-18 2019-03-18 A kind of methanol from natural gas and methanol storage handler of floating Pending CN109927850A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134732A (en) * 1977-06-08 1979-01-16 Continental Oil Company Floating methanol plant
CN102083746A (en) * 2008-07-11 2011-06-01 约翰森·马瑟公开有限公司 Apparatus and process for treating offshore natural gas
CN202744473U (en) * 2012-06-21 2013-02-20 中国石油天然气股份有限公司 Poly-generation device for preparing olefin by taking coal and natural gas as raw materials
JP2014118001A (en) * 2012-12-14 2014-06-30 Mitsubishi Heavy Ind Ltd Floating type petroleum storage marine structure
KR20150100005A (en) * 2014-02-24 2015-09-02 대우조선해양 주식회사 Methanol Production Method And System Using GTL Production Process
CN209938883U (en) * 2019-03-18 2020-01-14 上海惠生海洋工程有限公司 Floating type methanol preparation from natural gas and methanol storage and unloading device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134732A (en) * 1977-06-08 1979-01-16 Continental Oil Company Floating methanol plant
CN102083746A (en) * 2008-07-11 2011-06-01 约翰森·马瑟公开有限公司 Apparatus and process for treating offshore natural gas
CN202744473U (en) * 2012-06-21 2013-02-20 中国石油天然气股份有限公司 Poly-generation device for preparing olefin by taking coal and natural gas as raw materials
JP2014118001A (en) * 2012-12-14 2014-06-30 Mitsubishi Heavy Ind Ltd Floating type petroleum storage marine structure
KR20150100005A (en) * 2014-02-24 2015-09-02 대우조선해양 주식회사 Methanol Production Method And System Using GTL Production Process
CN209938883U (en) * 2019-03-18 2020-01-14 上海惠生海洋工程有限公司 Floating type methanol preparation from natural gas and methanol storage and unloading device

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