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1. 发明申请

WO2002096848A2 PROCESS 审中-公开
标题翻译：处理
公开(公告)号：WO2002096848A2
公开(公告)日：2002-12-05
申请号：PCT/GB2002/002510
申请日：2002-05-29
申请人： DAVY PROCESS TECHNOLOGY LIMITED , BANISTER, James, Andrew , HARRISON, George, Edwin
发明人： BANISTER, James, Andrew , HARRISON, George, Edwin
IPC分类号： C07C45/50
CPC分类号： C07C45/50 , Y02P20/584 , C07C47/02
摘要： The present invention relates to a continuous hydroformylation process for the production of an aldehyde by hydroformylation of an olefin which comprises: providing a hydroformylation zone containing a charge of a liquid reaction medium having dissolved therein a rhodium hydroformylation catalyst comprising rhodium in combination with carbon monoxide and a ligand; supplying the olefin to the hydroformylation zone; maintaining temperature and pressure conditions in the hydroformylation zone conducive to hydroformylation of the olefin; recovering from the liquid hydroformylation medium a hydroformylation product comprising aldehyde; recovering from the hydroformylation zone a stream comprising the rhodium catalyst; contacting at least a portion of the stream with a solid acidic absorbent under process conditions which allow at least some of the rhodium to become bound to the absorbent; subjecting the rhodium bound to the absorbent, under process conditions which allow desorption of the metal, to a fluid stripping medium comprising hydrogen and solvent; recovering the rhodium hydride catalyst; and recycling the rhodium hydride catalyst to the hydroformylation zone.
摘要翻译：本发明涉及用于通过烯烃的加氢甲酰化生产醛的连续加氢甲酰化方法，其包括：提供含有液体反应介质的加氢甲酰化区，该液体反应介质溶解有铑加氢甲酰化催化剂，其包含铑与一氧化碳和配体; 将烯烃供应到加氢甲酰化区; 维持加氢甲酰化区中有利于烯烃加氢甲酰化的温度和压力条件; 从液体加氢甲酰化介质中回收含有醛的加氢甲酰化产物; 从加氢甲酰化区回收包含铑催化剂的物流; 在工艺条件下使至少一部分流与固体酸性吸收剂接触，使得至少一些铑与吸收剂结合; 在允许金属解吸的工艺条件下将结合到吸收剂上的铑经受包含氢气和溶剂的流体汽提介质; 回收氢化铑催化剂; 并将氢化铑催化剂再循环到加氢甲酰化区。

2. 发明申请

WO1994010112A1 PROCESS FOR THE PRODUCTION OF FATTY ALCOHOLS 审中-公开
标题翻译：生产脂肪醇的方法
公开(公告)号：WO1994010112A1
公开(公告)日：1994-05-11
申请号：PCT/GB1993002231
申请日：1993-10-29
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , DENNIS, Alan, James , SHARIF, Mohammad
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C29/149
CPC分类号： C07C29/149 , C07C31/125
摘要： A continuous process for the production of a fatty alcohol from a fatty acid comprises: (a) providing an esterification zone maintained under esterification conditions; (b) supplying to the esterification zone (i) a fatty acid feed comprising at least one fatty acid and (ii) a fatty alcohol feed comprising at least one fatty alcohol; (c) reacting fatty acid and fatty alcohol in the esterification zone to form at least one high boiling ester of a fatty acid and of a fatty alcohol and to provide an esterification product mixture that is substantially free from fatty acid; (d) providing at least one hydrogenation zone containing a fixed bed of an ester hydrogenation catalyst and maintained under ester hydrogenation conditions; (e) subjecting said at least one high boiling ester of said esterification product mixture to liquid phase hydrogenation in said at least one hydrogenation zone thereby to form an exit stream comprising fatty alcohol; (f) recycling a part of the fatty alcohol of the exit stream from the hydrogenation zone to the esterification zone to form further high boiling ester; and (g) recovering another part of the exit stream as a product stream comprising fatty alcohol.
摘要翻译：从脂肪酸生产脂肪醇的连续方法包括：（a）提供在酯化条件下保持的酯化区; （b）向酯化区（i）供应包含至少一种脂肪酸的脂肪酸进料和（ii）包含至少一种脂肪醇的脂肪醇进料; （c）在酯化区中使脂肪酸和脂肪醇反应形成脂肪酸和脂肪醇的至少一种高沸点酯，并提供基本上不含脂肪酸的酯化产物混合物; （d）提供至少一个含有酯氢化催化剂的固定床并保持在酯氢化条件下的氢化区; （e）使所述至少一种所述酯化产物混合物的高沸点酯在所述至少一个氢化区中进行液相氢化，从而形成包含脂肪醇的出口物流; （f）将出口物流的一部分脂肪醇从氢化区回收至酯化区以形成另外的高沸点酯; 和（g）作为包含脂肪醇的产物流回收出口流的另一部分。

3. 发明申请

WO1990013612A1 MULTI-STEP HYDRODESULPHURISATION PROCESS 审中-公开
标题翻译：多步骤水解过程
公开(公告)号：WO1990013612A1
公开(公告)日：1990-11-15
申请号：PCT/GB1990000717
申请日：1990-05-09
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , McKINLEY, Donald, Hugh , DENNIS, Alan, James
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C10G0
CPC分类号： C10G45/16 , B01J8/22 , C10G65/04 , C10G2400/14
摘要： A hydrodesulphurisation process is provided for continuously effecting hydrodesulphurisation of a liquid sulphur-containing hydrocarbon feedstock (5) which comprises: (a) providing a hydrodesulphurisation zone maintained under hydrodesulphurisation conditions and comprising a column reactor (1) having a plurality of reaction trays (2) therein mounted one above another, each tray defining a respective reaction stage adapted to hold a predetermined liquid volume and a charge of a sulphided solid hydrodesulphurisation catalyst therein, liquid downcomer means (8) associated with each reaction tray adapted to allow liquid to pass down the column reactor from that tray but to retain solid catalyst thereon, and gas upcomer means (4) associated with each reaction tray adapted to allow gas to enter that tray from below and to agitate the mixture of liquid and catalyst on that tray; (b) supplying liquid sulphur-containing hydrocarbon feedstock (7) to the uppermost one of said plurality of reaction trays; (c) supplying hydrogen-containing gas (3) below the lowermost one of said plurality of reaction trays; (d) allowing liquid to pass downward through the column reactor from tray to tray; (e) allowing hydrogen-containing gas to pass upward through the column reactor from tray to tray; (f) recovering from the uppermost one of said plurality of reaction trays and off-gas (17) containing H2S produced by hydrodesulphurisation; and (g) recovering from the lowermost one of said plurality of reaction trays a liquid hydrocarbon product of reduced sulphur content (40).
摘要翻译：提供了一种加氢脱硫方法，用于连续地对液态含硫烃原料（5）进行加氢脱硫，其包括：（a）提供在加氢脱硫条件下保持的加氢脱硫区，并且包括具有多个反应塔板（2）的塔式反应器），其中每个托盘限定适于保持预定液体体积的相应反应阶段和其中的硫化固体加氢脱硫催化剂的电荷，每个反应台与每个反应塔相关联的适于允许液体通过的液体降液装置（8）来自该托盘的塔式反应器，但在其上保持固体催化剂，以及与每个反应塔相关联的气体升降装置（4），其适于允许气体从下方进入该塔盘并搅拌该托盘上的液体和催化剂的混合物; （b）将液体含硫烃原料（7）供应到所述多个反应塔板中最上面的一个; （c）在所述多个反应塔板的最下面的一个下方供应含氢气体（3）; （d）允许液体从塔盘向下通过塔式反应器; （e）允许含氢气体通过塔式反应器从塔盘向托盘通过; （f）从所述多个反应塔中的最上面的一个回收和含有通过加氢脱硫产生的H 2 S的废气（17）; 和（g）从所述多个反应塔板中的最下面的一个反应塔中回收具有降低的硫含量的液体烃产物（40）。

4. 发明申请

WO1990008592A1 CATALYST 审中-公开
标题翻译：催化剂
公开(公告)号：WO1990008592A1
公开(公告)日：1990-08-09
申请号：PCT/GB1990000130
申请日：1990-01-29
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , DENNIS, Alan, James , WEBB, Geoffrey
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： B01J35/10
CPC分类号： B01J37/18 , B01J23/40 , B01J23/462 , B01J35/0053 , B01J35/10 , B01J35/1014
摘要： A reduced supported Group VIII metal catalyst of enhanced activity is obtained by an ante-pre-reduction treatment in which a supported Group VIII metal catalyst precursor is soaked in a reducing atmosphere at temperatures below a pre-reduction temperature (typically about 140 DEG C) at which appreciable pre-reduction of the catalyst can be detected. This catalyst may be, for example, a ruthenium on alumina catalyst and is characterised by a Group VIII metal surface area of at least about 45 m /g of Group VIII metal present in the catalyst, as measured by adsorption of carbon monoxide thereon.
摘要翻译：通过前处理还原处理获得还原的负载的VIII族金属催化剂，其中将负载的第VIII族金属催化剂前体在低于预还原温度（通常约140℃）的温度下在还原气氛中浸泡，可以检测出催化剂的明显的预还原。该催化剂可以是例如氧化钌催化剂上的催化剂，其特征在于催化剂中存在的至少约45m 2 / g的第Ⅷ族金属的Ⅷ族金属表面积，通过吸附一氧化碳在其上。

5. 发明申请

WO1990008123A1 PROCESS 审中-公开
标题翻译：处理
公开(公告)号：WO1990008123A1
公开(公告)日：1990-07-26
申请号：PCT/GB1990000065
申请日：1990-01-16
申请人： DAVY McKEE (LONDON) LIMITED , WILMOTT, Martyn , HARRISON, George, Edwin , SCARLETT, John , WOOD, Michael, Anthony , McKINLEY, Donald, Hugh
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C31/125
CPC分类号： C07C29/149 , C07C67/03 , C07C31/125 , C07C69/24
摘要： A process is described for separating fatty alcohols from a fatty alcohol fraction which contains a minor amount of a lower alkyl (e.g. methyl) fatty acid ester or esters. The fatty alcohol fraction is subjected to transesterification to convert substantially all of any lower alkyl ester present to wax ester or esters. The resulting lower alkanol (e.g. methanol) is evaporated. Then the intermediate transesterification mixture is distilled to recover fatty alcohols. The residue from this distillation step is mixed with excess lower alkanol and again transesterified to reconvert wax ester or esters to lower alkyl esters. This mixture is re-distilled and the recovered mixture of lower alkanol and fatty alcohol or alcohols can be recycled. If an alkyl titanate is used as transesterification catalyst then both distillation steps can be effected without prior separation of the catalyst and the non volatile residue from the second distillation step can be recycled to the first transesterification step.
摘要翻译：描述了从含有少量低级烷基（例如甲基）脂肪酸酯或酯的脂肪醇级分分离脂肪醇的方法。将脂肪醇馏分进行酯交换反应以将存在的任何低级烷基酯基本上转化为蜡酯或酯。蒸发所得到的低级链烷醇（如甲醇）。然后将中间体酯交换混合物蒸馏以回收脂肪醇。将来自该蒸馏步骤的残余物与过量的低级链烷醇混合，再次酯交换以将蜡酯或酯重新转化为低级烷基酯。将该混合物再次蒸馏，并回收低级链烷醇和脂肪醇或醇的回收混合物。如果使用钛酸烷基酯作为酯交换催化剂，则可以在不预先分离催化剂的情况下进行两个蒸馏步骤，并且来自第二蒸馏步骤的非挥发性残余物可以再循环到第一酯交换步骤。

6. 发明申请

WO1989005286A1 PROCESS 审中-公开
标题翻译：处理
公开(公告)号：WO1989005286A1
公开(公告)日：1989-06-15
申请号：PCT/GB1988001027
申请日：1988-11-25
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , DENNIS, Alan, James
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C29/14
CPC分类号： B01J8/02 , B01J2208/00061 , B01J2208/00141 , B01J2208/00212 , B01J2208/00256 , B01J2208/00495 , B01J2208/0053 , B01J2208/00539 , B01J2208/00548 , B01J2208/0061 , C07C29/141 , C07C31/125
摘要： A liquid phase catalytic hydrogenation process is described in which an organic feedstock, such as an aldehyde containing from 2 to about 20 carbon atoms, is contacted with hydrogen in the presence of a solid hydrogenation catalyst under hydrogenation conditions to produce a hydrogenation product, such as the corresponding alcohol containing from 2 to about 20 carbon atoms, which process comprises passing a feed solution of the organic feedstock in an inert diluent therefor downwardly in co-current with a hydrogen-containing gas through a hydrogenation zone containing a bed of a particulate hydrogenation catalyst whose particles substantially all lie in the range of from about 0.5 mm to about 5 mm, maintaining the bed of catalyst particles under temperature and pressure conditions conductive to hydrogenation, recovering from a bottom part of the bed a liquid phase containing the hydrogenation product, controlling the rate of supply of the feed solution to the bed so as to maintain a superficial liquid velocity of the liquid down the bed in the range of from about 1.5 cm/sec to about 5 cm/sec, and controlling the rate of supply of the hydrogen-containing gas to the bed so as to maintain at the top surface of the bed of catalyst particles a flow of hydrogen-containing gas containing from 1.00 to about 1.15 times the stoichiometric quantity of hydrogen theoretically necessary to convert the organic feedstock completely to the hydrogenation product.

7. 发明申请

WO1988000179A2 PROCESS FOR THE PRODUCTION OF ALDEHYDES BY HYDROFORMYLATION 审中-公开
标题翻译：通过水解制备醛类的方法
公开(公告)号：WO1988000179A2
公开(公告)日：1988-01-14
申请号：PCT/GB1987000408
申请日：1987-06-12
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , DENNIS, Alan, James
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C45/50
CPC分类号： C07C45/49 , C07C45/50 , C07C45/82 , C07C47/02
摘要： Continuous process for hydroformylation of olefins containing, typically, from 6 to 20 carbon atoms to produce the corresponding aldehydes. The rate of formation of high boiling aldehyde condensation products is minimised by use of a high boiling inert solvent whose boiling point, at the pressure prevailing in the product recovery zone, lies intermediate between that of the highest boiling aldehyde product produced in the hydroformylation reaction and that of the ligand, as well as by maintaining the concentration of product aldehyde at or below a predetermined minor amount. In this way the length of a production run can be significantly extended before it becomes necessary to shut down the plant due to accumulation of high boiling aldehyde condensation products.
摘要翻译：用于含有通常为6至20个碳原子的烯烃的加氢甲酰化的连续方法以产生相应的醛。通过使用高沸点惰性溶剂使得高沸点醛缩合产物的形成速率最小化，其沸点在产物回收区中的压力处于加氢甲酰化反应中产生的最高沸点醛产物的沸点之间，配体的浓度，以及通过将产品醛的浓度保持在或低于预定的微量。以这种方式，生产运行的长度可以在由于高沸点醛缩合产物的积聚而需要关闭工厂之前显着延长。

8. 发明申请

WO1987007598A1 PROCESS FOR HYDROGENATING AN UNSATURATED ORGANIC COMPOUND 审中-公开
标题翻译：加氢不饱和有机化合物的方法
公开(公告)号：WO1987007598A1
公开(公告)日：1987-12-17
申请号：PCT/GB1987000340
申请日：1987-05-18
申请人： DAVY McKEE (LONDON) LIMITED , HARRISON, George, Edwin , HILES, Andrew, George
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07B35/02
CPC分类号： C07C29/141 , B01J8/0453 , B01J8/0457 , B01J2208/00141 , B01J2208/00274 , B01J2208/00283 , B01J2208/00548 , C07C31/10 , C07C31/12 , C07C31/125
摘要： A continuous process for hydrogenating an unsaturated organic compound to a corresponding hydrogenation product which process comprises: (a) providing a hydrogenation plant comprising first and second hydrogenation zones connected in series each containing a charge of a solid heterogeneous hydrogenation catalyst; (b) continuously supplying to an upper part of the first hydrogenation zone (i) a hydrogen-containing gas and (ii) a liquid phase containing the unsaturated organic compound dissolved in a compatible diluent therefor; (c) maintaining the first hydrogenation zone under temperature and pressure conditions conducive to hydrogenation; (d) allowing liquid phase to pass downwardly through the first hydrogenation zone; (e) continuously recovering an intermediate reaction product from a lower part of said first hydrogenation zone; (f) recovering a gaseous effluent from a lower part of the first hydrogenation zone; (g) supplying intermediate reaction product from step (e) in liquid form to an upper part of said second hydrogenation zone; (h) maintaining the second hydrogenation zone under temperature and pressure conditions conducive to hydrogenation; (i) allowing intermediate liquid reaction product to pass downwardly through said second hydrogenation zone; (j) supplying a hydrogen-containing gas to a lower part of the second hydrogenation zone; (k) recovering a gaseous effluent stream from an upper part of the second hydrogenation zone; (l) recovering a liquid hydrogenation product containing stream from a lower part of the second hydrogenation zone; and (m) purging material of at least one of the gaseous effluent streams of steps (f) and (k) from the hydrogenation plant; whereby the flows of gas and liquid are in co-current in said first hydrogenation zone and are in counter-current in said second hydrogenation zone.
摘要翻译：一种用于将不饱和有机化合物氢化成相应氢化产物的连续方法，该方法包括：（a）提供氢化装置，其包括串联连接的第一和第二氢化区，每个含有固体非均相氢化催化剂的电荷; （b）向第一氢化区（i）的上部连续供应含氢气体和（ii）含有溶解在其相容的稀释剂中的不饱和有机化合物的液相; （c）在有利于氢化的温度和压力条件下保持第一氢化区; （d）允许液相向下通过第一氢化区; （e）从所述第一氢化区的下部连续回收中间反应产物; （f）从第一氢化区的下部回收气态流出物; （g）将液体形式的步骤（e）的中间反应产物供给到所述第二氢化区的上部; （h）在有利于氢化的温度和压力条件下保持第二氢化区; （i）允许中间液体反应产物向下通过所述第二氢化区; （j）向第二氢化区的下部供应含氢气体; （k）从第二氢化区的上部回收气态流出物流; （l）从第二氢化区的下部回收含有液体氢化产物的物流; 和（m）来自加氢装置的步骤（f）和（k）的至少一种气态流出物流的清洗材料; 由此气体和液体的流动在所述第一氢化区中并流并且在所述第二氢化区中是逆流的。

9. 发明申请

WO1993020034A1 ALDOLISATION-DEHYDRATION PROCESS 审中-公开
标题翻译：去除脱水过程
公开(公告)号：WO1993020034A1
公开(公告)日：1993-10-14
申请号：PCT/GB1993000729
申请日：1993-04-07
申请人： DAVY MCKEE (LONDON) LIMITED , HARRISON, George, Edwin , REASON, Arthur, James , DENNIS, Alan, James , SHARIF, Mohammad
发明人： DAVY MCKEE (LONDON) LIMITED
IPC分类号： C07C45/74
CPC分类号： C07C45/66 , C07C45/72 , C07C45/74 , C07C45/81 , C07C45/82 , Y02P20/584
摘要： An aldolisation-dehydration process is disclosed for converting an aldehyde, e.g. n &cir& _-valeraldehyde, to a substituted acrolein, e.g. propyl butyl acrolein (2-propylhept-2-enal). Aldolisation and dehydration are effected in a stirred tank reactor (16; 111) using an alkali catalyst, such as sodium hydroxide. A reaction product stream (23; 113) containing both organic and aqueous phases is distilled (in column 25; 123) to yield a heterogeneous azeotrope containing water and aldehyde. On condensation and phase separation the lower water layer (34; 150) can be discharged from the plant without the need for neutralisation. From the bottom of the distillation zone a mixture (36; 157) of substituted acrolein and alkali catalyst solution is obtained. The substituted acrolein is recovered as product (45; 173), while the catalyst solution (47; 175) is recycled to the aldolisation reactor. Part (49; 181) of the catalyst solution is purged to control the level of Cannizzaro reaction products.
摘要翻译：公开了醛脱水脱水方法，用于转化醛，例如不饱和醛与取代的丙烯醛，例如丙基丁基丙烯醛（2-丙基庚-2-烯醛）。醛化和脱水在搅拌釜反应器（16; 111）中使用碱性催化剂如氢氧化钠进行。蒸馏含有有机相和水相的反应产物流（23; 113）（在第25列;第123列），得到含有水和醛的非均相共沸物。在冷凝和相分离时，下水层（34; 150）可以从设备中排出而不需要中和。从蒸馏区的底部获得取代的丙烯醛和碱催化剂溶液的混合物（36; 157）。将取代的丙烯醛作为产物（45; 173）回收，同时将催化剂溶液（47; 175）再循环至醛醇化反应器。将催化剂溶液的部分（49; 181）吹扫以控制Cannizzaro反应产物的水平。

10. 发明申请

WO1990008121A1 PROCESS FOR THE PRODUCTION OF FATTY ALCOHOLS 审中-公开
标题翻译：生产脂肪醇的方法
公开(公告)号：WO1990008121A1
公开(公告)日：1990-07-26
申请号：PCT/GB1990000063
申请日：1990-01-16
申请人： DAVY MCKEE (LONDON) LIMITED , WILMOTT, Martyn , HARRISON, George, Edwin , SCARLETT, John , WOOD, Michael, Anthony , McKINLEY, Donald, Hugh
发明人： DAVY MCKEE (LONDON) LIMITED
IPC分类号： C07C29/136
CPC分类号： C07C29/177 , C07C29/149 , C07C67/03 , C07C67/08 , C07C31/125 , C07C31/20 , C07C69/24
摘要： A process is described for producing fatty alcohols. A fatty acid or fatty acid mixture is esterified in a column reactor in which there is a plurality of esterification trays each having a predetermined liquid hold-up and containing a charge of a solid esterification catalyst thereon, e.g. an ion exchange resin containing -SO3H and/or -COOH groups. A liquid phase containing the fatty acid or fatty acid mixture flows down the column reactor from one esterification tray to the next downward one against an upflowing lower alkanol vapour stream, e.g. methanol vapour. Relatively dry lower alkanol vapour (water content not more than 5 mole %) is injected into the bottom of the column reactor. Water of esterification is removed from the top of the column reactor in the vapour stream, whilst ester product is recovered from the sump of the reactor. As the liquid flows down the trays it encounters progressively drier lower alkanol. The ester product recovered from the bottom of the reactor has an ester content of at least 99 mole % (calculated on a lower alkanol free basis). This ester product is then subjected to vapour phase hydrogenation, using typically a reduced copper oxide-zinc oxide catalyst. The resulting mixture contains, in addition to at least about 0.5 mole % up to about 5 mole % of unreacted ester, product fatty alcohol or alcohols and lower alkanol, there being no need to separate the lower alkanol from the ester if the lower alkanol is methanol. This is distilled to yield a fatty alcohol fraction which contains a minor amount of a lower alkyl (e.g. methyl) fatty acid ester or esters. The fatty alcohol fraction is subjected to transesterification to convert substantially all of any lower alkyl ester present to wax ester or esters. The resulting lower alkanol (e.g. methanol) is partially evaporated. Then the intermediate transesterification mixture is distilled to recover fatty alcohols. The residue from this distillation step is mixed with excess lower alkanol and again transesterified to reconvert wax ester or esters to lower alkyl esters. This mixture is re-distilled and the recovered mixture of lower alkanol, methyl fatty acid esters, and fatty alcohol or alcohols can be recycled. If an alkyl titanate is used as transesterification catalyst then both distillation steps can be effected without prior separation of the catalyst and the non volatile residue from the second distillation step can be recycled to the first transesterification step.
摘要翻译：描述了制备脂肪醇的方法。脂肪酸或脂肪酸混合物在柱反应器中酯化，其中存在多个酯化塔板，每个酯化塔板具有预定的液体滞留物，并在其上含有固体酯化催化剂，例如，含有-SO 3 H和/或-COOH基团的离子交换树脂。含有脂肪酸或脂肪酸混合物的液相在塔式反应器中从一个酯化塔向下流动，向上流动的低级烷醇蒸气流，甲醇蒸气。相对干燥的低级烷醇蒸气（含水量不超过5摩尔％）被注入塔式反应器的底部。在蒸气流中从塔反应器的顶部除去酯化水，同时从反应器的贮槽回收酯产物。当液体向下流动时，它遇到逐渐干燥的低级链烷醇。从反应器底部回收的酯产物的酯含量至少为99摩尔％（以较低的无链烷醇计算）。然后将该酯产物进行气相氢化，通常使用还原的氧化铜 - 氧化锌催化剂。所得混合物除了至少约0.5摩尔％至多约5摩尔％的未反应酯，产物脂肪醇或醇和低级链烷醇外，如果低级链烷醇为甲醇。将其蒸馏以产生含有少量低级烷基（例如甲基）脂肪酸酯或酯的脂肪醇级分。将脂肪醇馏分进行酯交换反应以将存在的任何低级烷基酯基本上转化为蜡酯或酯。得到的低级链烷醇（如甲醇）部分蒸发。然后将中间体酯交换混合物蒸馏以回收脂肪醇。将来自该蒸馏步骤的残余物与过量的低级链烷醇混合，再次酯交换以将蜡酯或酯重新转化为低级烷基酯。将该混合物再蒸馏，并回收低级链烷醇，甲基脂肪酸酯和脂肪醇或醇的回收混合物。如果使用钛酸烷基酯作为酯交换催化剂，则可以在不预先分离催化剂的情况下进行两个蒸馏步骤，并且来自第二蒸馏步骤的非挥发性残余物可以再循环到第一酯交换步骤。

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