CN103980940A - Method for improving solidifying point of Fischer-Tropsch wax - Google Patents
Method for improving solidifying point of Fischer-Tropsch wax Download PDFInfo
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- CN103980940A CN103980940A CN201410217632.3A CN201410217632A CN103980940A CN 103980940 A CN103980940 A CN 103980940A CN 201410217632 A CN201410217632 A CN 201410217632A CN 103980940 A CN103980940 A CN 103980940A
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Abstract
The invention relates to a method for preparing high-melting-point refined wax capable of being applied to plastics, rubber processing, wood processing, food processing and other industries and particularly relates to a method for improving the solidifying point of Fischer-Tropsch wax. According to the method for preparing high-melting-point refined wax with excellent performances, distillation refining is carried out on light-weight oil serving as a raw material by means of continuous high-vacuum distillation, wherein the light-weight oil is produced by indirect coal liquefaction; According to the technical scheme, the method comprises two steps, namely, firstly, feeding the raw material in an evaporator by a feed pump so as to heat and evaporate the oil components and other low-boiling-point substances under the conditions of high temperature and high vacuum degree; secondly, feeding the coal-based synthetic oil without oil components and other low-boiling-point substances into a distiller, heating and evaporating the coal-based synthetic oil products by using heat-conduction oil under extremely high vacuum condition, condensing and capturing in a condenser to obtain the target product. The method disclosed by the invention can be widely used in the field of chemical industry.
Description
Technical field
The present invention relates to a kind of waxed Preparation Method of high-melting-point essence that can be applied to the industries such as plastics, Rubber processing, wood working, food-processing, be specially a kind of method that improves Fischer-Tropsch wax zero pour.
Background technology
High-melting-point special wax is widely used in the industries such as plastics, Rubber processing, wood working, food-processing.But due to production technique restriction and the setting of foreign technology barrier, current domestic high-melting-point special wax market is monopolized by multinational enterprises such as shell, Sasol substantially.Domestic current wax is mainly that oil is prepared from by evaporation rectifying, and general fusing point is lower, the industry that can not be applied in some special trade or have relatively high expectations.Therefore producing high-melting-point essence wax is the inevitable requirement of domestic industry economic production development.
Patent CN02814083.4 has announced a kind of preparation method of fischer-tropsch wax, but its technological process of production is mainly for the purity that how to improve Fischer-Tropsch wax.
Summary of the invention
The present invention has overcome the deficiency that prior art exists, and it is raw material that a kind of lightweight oil of take ICL for Indirect Coal Liquefaction generation is provided, and through continous way molecular distillation mode, distills and refines, and makes the method for the high-melting-point essence wax of excellent property.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of method that improves Fischer-Tropsch wax zero pour, carry out according to the following steps:
The first step: raw material is entered to vaporizer by fresh feed pump, under high temperature high vacuum, make oil ingredient and other low-boiling point materials be subject to thermal evaporation;
Second step: the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials is entered to distiller, and by heat-conducting oil heating, under extra-high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtains target product.
Evaporation conditions in the described the first step is: temperature of reaction is 300 ℃, reaction pressure≤1000Pa.
Distillation condition in described second step: reaction pressure is 1Pa, temperature of reaction is 300 ℃.
Raw material in the described the first step is the lightweight oil that indirect coal liquefaction generates.
Still-process in described second step adopts continous way molecular distillation mode, distill while refining and heat by heat-conducting oil furnace, each adopts independent thermal oil unit temperature control system with oily unit, to realize each with the control of oily unit differing temps, 300 ℃ of oil-feed house steward temperature, are regulated and are guaranteed temperature-stable by boiler.
Described vapo(u)rization system and Distallation systm adopt two to overlap independently vacuum system, and wherein vapo(u)rization system adopts vapo(u)r blasting pumping set+Roots vaccum pump, guarantee absolute pressure vacuum≤1000Pa; Distallation systm adopts vapo(u)r blasting pumping set+two-stage Roots vaccum pump, guarantees absolute pressure vacuum≤1Pa.
The beneficial effect that the present invention compared with prior art has is: the present invention is usingd light-end products that ICL for Indirect Coal Liquefaction makes as starting material, by continous way molecular distillation mode, distill refining, this high-melting-point Fischer-Tropsch essence wax is compared with common paraffin, polyethylene wax to be had without S, N aromatic hydrocarbons, good security, higher fusing point and hardness, the peculiar property of lower melt viscosity.
Method of the present invention has been widened raw material and the preparation method of the special wax of industries such as being applied to plastics, Rubber processing, wood working, food-processing.
Embodiment
A kind of method that improves Fischer-Tropsch wax zero pour of the present invention, carry out according to the following steps:
The first step: raw material is entered to vaporizer by fresh feed pump, under high temperature high vacuum, make oil ingredient and other low-boiling point materials be subject to thermal evaporation;
Second step: the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials is entered to distiller, and by heat-conducting oil heating, under extra-high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtains target product.
Evaporation conditions in the described the first step is: temperature of reaction is 300 ℃, reaction pressure≤1000Pa.
Distillation condition in described second step: reaction pressure is 1Pa, temperature of reaction is 300 ℃.
Raw material in the described the first step is the lightweight oil that indirect coal liquefaction generates.
Still-process in described second step adopts continous way molecular distillation mode, distill while refining and heat by heat-conducting oil furnace, each adopts independent thermal oil unit temperature control system with oily unit, to realize each with the control of oily unit differing temps, 300 ℃ of oil-feed house steward temperature, are regulated and are guaranteed temperature-stable by boiler.
Described vapo(u)rization system and Distallation systm adopt two to overlap independently vacuum system, and wherein vapo(u)rization system adopts vapo(u)r blasting pumping set+Roots vaccum pump, guarantee absolute pressure vacuum≤1000Pa; Distallation systm adopts vapo(u)r blasting pumping set+two-stage Roots vaccum pump, guarantees absolute pressure vacuum≤1Pa.
The technique means of the present invention being taked below in conjunction with preferred embodiments and the effect reaching are described in detail.
Preparation method
It is raw material that present method be take the lightweight oil that ICL for Indirect Coal Liquefaction is prepared from, the main continous way molecular distillation mode that adopts is distilled, be specially: first raw material enters vaporizer by fresh feed pump, under high temperature high vacuum, make oil ingredient and other low-boiling point materials be subject to thermal evaporation.Condition during evaporation is: reaction pressure :≤1000Pa (absolute pressure), temperature of reaction is 300 ℃.Then the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials enters distiller, and by heat-conducting oil heating, under extra-high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtains target product.Condition during distillation is: reaction pressure: 1Pa (absolute pressure), temperature of reaction is 300 ℃.
Embodiment mono-
Choose a kind of typical ICL for Indirect Coal Liquefaction preparation and light-end products be raw material, its character is as table 1, preparation meets the 97# fusing point wax of international standard.The processing condition that adopt are: fresh feed pump adds vaporizer with 100L/h continuously by raw material, by heat-conducting oil heating to 300 ℃, during reaction pressure: 1000Pa (absolute pressure), makes oil ingredient and other low-boiling point materials be subject to thermal evaporation.At the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials, enter after distiller, under high temperature high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtain target product, condition during distillation is: reaction pressure: 1Pa (absolute pressure), and temperature of reaction is 300 ℃, the main performance index of the 97# fusing point wax obtaining is as shown in table 2.
Table 1 ICL for Indirect Coal Liquefaction preparation and lightweight oil character
| Project | Cut | Standard |
| Initial boiling point ℃ | 160 | GB/T6536 |
| Final boiling point ℃ | 200 | GB/T6536 |
| 20 ℃ of mm of kinematic viscosity 2·s -1 | 1.132 | GB/T265 |
| Close flash point ℃ | 45 | GB/T261 |
| Aromaticity content % | 1.6 | SH/T0245-2004 |
| 20 ℃ of kg/m of density 3 | 800.3 | GB/T1884 |
The main performance index of table 297# fusing point wax
| Project | Cut |
| Fusing point ℃ | 97 |
| Melt drop temperature ℃ | 101 |
| 100 ℃ of mm of kinematic viscosity 2·s -1 | <12 |
| 25 ℃ of penetration degrees, 1/10mm | 14 |
| 20 ℃ of kg/m of density 3 | 760～780 |
Embodiment bis-
Choose a kind of typical ICL for Indirect Coal Liquefaction preparation and light-end products be raw material, its character is as table 3, the extraordinary high-melting-point essence of preparation 80# wax.The processing condition that adopt are: fresh feed pump adds vaporizer with 100L/h continuously by raw material, by heat-conducting oil heating to 300 ℃, during reaction pressure: 1000Pa (absolute pressure), makes oil ingredient and other low-boiling point materials be subject to thermal evaporation.At the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials, enter after distiller, under high temperature high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtain target product, condition during distillation is: reaction pressure: 1Pa (absolute pressure), and temperature of reaction is 300 ℃, the main performance index of the 97# fusing point wax obtaining is as shown in table 4.
Table 3 ICL for Indirect Coal Liquefaction preparation and lightweight oil character
| Project | Cut | Standard |
| Initial boiling point ℃ | 160 | GB/T6536 |
| Final boiling point ℃ | 200 | GB/T6536 |
| 20 ℃ of mm of kinematic viscosity 2·s -1 | 1.132 | GB/T265 |
| Close flash point ℃ | 45 | GB/T261 |
| Aromaticity content % | 1.6 | SH/T0245-2004 |
| 20 ℃ of kg/m of density 3 | 800.3 | GB/T1884 |
The main performance index of table 497# fusing point wax
| Project | Cut |
| Fusing point ℃ | 80 |
| Melt drop temperature ℃ | 101 |
| 100 ℃ of mm of kinematic viscosity 2·s -1 | <12 |
| 25 ℃ of penetration degrees, 1/10mm | 14 |
| 20 ℃ of kg/m of density 3 | 760～780 |
Embodiment tri-
Choose a kind of typical ICL for Indirect Coal Liquefaction preparation and light-end products be raw material, its character is as table 5, the extraordinary high-melting-point essence of preparation 105# wax.The processing condition that adopt are: fresh feed pump adds vaporizer with 100L/h continuously by raw material, by heat-conducting oil heating to 300 ℃, during reaction pressure: 1000Pa (absolute pressure), makes oil ingredient and other low-boiling point materials be subject to thermal evaporation.At the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials, enter after distiller, under high temperature high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtain target product, condition during distillation is: reaction pressure: 1Pa (absolute pressure), and temperature of reaction is 300 ℃, the main performance index of the 97# fusing point wax obtaining is as shown in table 6.
Table 5 ICL for Indirect Coal Liquefaction preparation and lightweight oil character
| Project | Cut | Standard |
| Initial boiling point ℃ | 160 | GB/T6536 |
| Final boiling point ℃ | 200 | GB/T6536 |
| 20 ℃ of mm of kinematic viscosity 2·s -1 | 1.132 | GB/T265 |
| Close flash point ℃ | 45 | GB/T261 |
| Aromaticity content % | 1.6 | SH/T0245-2004 |
| 20 ℃ of kg/m of density 3 | 800.3 | GB/T1884 |
The main performance index of table 697# fusing point wax
| Project | Cut |
| Fusing point ℃ | 105 |
| Melt drop temperature ℃ | 101 |
| 100 ℃ of mm of kinematic viscosity 2·s -1 | <12 |
| 25 ℃ of penetration degrees, 1/10mm | 14 |
| 20 ℃ of kg/m of density 3 | 760 ～780 |
The present invention is explained in detail above, but the present invention is not limited to above-described embodiment in conjunction with the embodiments, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (6)
1. a method that improves Fischer-Tropsch wax zero pour, is characterized in that, carries out according to the following steps:
The first step: raw material is entered to vaporizer by fresh feed pump, under high temperature high vacuum, make oil ingredient and other low-boiling point materials be subject to thermal evaporation;
Second step: the coal-based synthetic oil that removes oil ingredient and other low-boiling point materials is entered to distiller, and by heat-conducting oil heating, under extra-high vacuum, coal-based synthetic oil product is subject to thermal evaporation, by the seizure that is condensed in condenser, obtains target product.
2. a kind of method that improves Fischer-Tropsch wax zero pour according to claim 1, is characterized in that, the evaporation conditions in the described the first step is: temperature of reaction is 300 ℃, reaction pressure≤1000Pa.
3. a kind of method that improves Fischer-Tropsch wax zero pour according to claim 1, is characterized in that the distillation condition in described second step: reaction pressure is 1Pa, and temperature of reaction is 300 ℃.
4. a kind of method that improves Fischer-Tropsch wax zero pour according to claim 1, is characterized in that, the raw material in the described the first step is the lightweight oil that indirect coal liquefaction generates.
5. a kind of method that improves Fischer-Tropsch wax zero pour according to claim 1, it is characterized in that, still-process in described second step adopts continous way molecular distillation mode, distill while refining and heat by heat-conducting oil furnace, each adopts independent thermal oil unit temperature control system with oily unit, to realize each with the control of oily unit differing temps, 300 ℃ of oil-feed house steward temperature, are regulated and are guaranteed temperature-stable by boiler.
6. a kind of method that improves Fischer-Tropsch wax zero pour according to claim 1, it is characterized in that, described vapo(u)rization system and Distallation systm adopt two to overlap independently vacuum system, and wherein vapo(u)rization system adopts vapo(u)r blasting pumping set+Roots vaccum pump, guarantee absolute pressure vacuum≤1000Pa; Distallation systm adopts vapo(u)r blasting pumping set+two-stage Roots vaccum pump, guarantees absolute pressure vacuum≤1Pa.
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Cited By (9)
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| CN104673383A (en) * | 2015-03-03 | 2015-06-03 | 上海兖矿能源科技研发有限公司 | Method for producing high-melting-point wax through fischer-tropsch synthesis product |
| CN105316031A (en) * | 2015-12-07 | 2016-02-10 | 山西潞安煤基合成油有限公司 | Method for directly preparing coal-based base oil by coal indirect liquefied oil product |
| CN105482849A (en) * | 2015-12-07 | 2016-04-13 | 山西潞安煤基合成油有限公司 | Method for improving chroma of Fischer-Tropsch wax |
| CN105567282A (en) * | 2015-12-07 | 2016-05-11 | 山西潞安煤基合成油有限公司 | Aromatic-free medical wax powder preparation method |
| CN106554823A (en) * | 2015-09-29 | 2017-04-05 | 亚申科技研发中心（上海）有限公司 | A kind of method that use Fischer-Tropsch waxy stone produces advanced wax |
| CN108949231A (en) * | 2018-08-13 | 2018-12-07 | 武汉轻工大学 | The method of leaching method raising Fischer-Tropsch wax fusion temperature |
| CN109486526A (en) * | 2018-12-29 | 2019-03-19 | 大连隆星新材料有限公司 | High melting point paraffin or microwax molecular distillation continuous production processes |
| CN109517626A (en) * | 2018-12-29 | 2019-03-26 | 大连隆星新材料有限公司 | A kind of preparation method of high-quality Fischer-Tropsch wax |
| CN109988548A (en) * | 2017-12-29 | 2019-07-09 | 内蒙古伊泰煤基新材料研究院有限公司 | High-temperature phase-change wax and preparation method thereof |
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Cited By (10)
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| CN104673383A (en) * | 2015-03-03 | 2015-06-03 | 上海兖矿能源科技研发有限公司 | Method for producing high-melting-point wax through fischer-tropsch synthesis product |
| CN106554823A (en) * | 2015-09-29 | 2017-04-05 | 亚申科技研发中心（上海）有限公司 | A kind of method that use Fischer-Tropsch waxy stone produces advanced wax |
| CN106554823B (en) * | 2015-09-29 | 2019-07-12 | 亚申科技(浙江)有限公司 | A method of advanced wax is produced with Fischer-Tropsch waxy stone |
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| CN105482849A (en) * | 2015-12-07 | 2016-04-13 | 山西潞安煤基合成油有限公司 | Method for improving chroma of Fischer-Tropsch wax |
| CN105567282A (en) * | 2015-12-07 | 2016-05-11 | 山西潞安煤基合成油有限公司 | Aromatic-free medical wax powder preparation method |
| CN109988548A (en) * | 2017-12-29 | 2019-07-09 | 内蒙古伊泰煤基新材料研究院有限公司 | High-temperature phase-change wax and preparation method thereof |
| CN108949231A (en) * | 2018-08-13 | 2018-12-07 | 武汉轻工大学 | The method of leaching method raising Fischer-Tropsch wax fusion temperature |
| CN109486526A (en) * | 2018-12-29 | 2019-03-19 | 大连隆星新材料有限公司 | High melting point paraffin or microwax molecular distillation continuous production processes |
| CN109517626A (en) * | 2018-12-29 | 2019-03-26 | 大连隆星新材料有限公司 | A kind of preparation method of high-quality Fischer-Tropsch wax |
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