# US 2018/0022673 A1 · Process for converting methanol to hydrocarbons suitable for use as gasoline or blendstock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022673 A1 - Document ID: US20180022673A1 - Status: Published application - Kind: A1 - Application number: 15/544,670 - Filed: 2016-01-22 - Published: 2018-01-25 - Earliest claimed: 2015-01-22 - Assignees: Haldor TopsøE A/S - Applicants: Haldor TopsøE A/S - Inventors: Finn JOENSEN; Uffe Vie MENTZEL; Ian MENJON - Web page: https://patentgrep.com/patent/US20180022673A1 ## CPC - C07C 29/141: with hydrogen or hydrogen-containing gases - B01J 29/405: {containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead} - C07C 1/20: starting from organic compounds containing only oxygen atoms as heteroatoms - C07C 9/08: Propane - C07C 9/10: with four carbon atoms - C10G 3/42: {Catalytic treatment} - C10G 3/46: {in combination with chromium, molybdenum, tungsten metals or compounds thereof} - C10G 3/49: {containing crystalline aluminosilicates, e.g. molecular sieves} - C10G 3/50: {in the presence of hydrogen, hydrogen donors or hydrogen generating compounds} - C10G 3/54: {characterised by the catalytic bed} - C07C 31/04: Methanol - C07C 2529/40: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 - C10G 2300/4081: Recycling aspects - C10G 2300/805: Water - C10G 2400/02: Gasoline - Y02P 20/52: using catalysts, e.g. selective catalysts - Y02P 30/20: using bio-feedstock - C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The present application relates to a process for production of hydrocarbons comprising the steps of converting a feed stream comprising alcohols, ethers or mixtures hereof over a metal-containing zeolite based catalyst, active in dehydrogenation of hydrocarbons, in a conversion step thereby obtaining a conversion effluent, separating said effluent to obtain art aqueous process condensate stream, a liquid hydrocarbon stream and a gaseous stream, removing part of the hydrogen formed in the conversion step, and recycling at least part of the gaseous and/or liquid hydrocarbon stream to the conversion step. ## Claims ### Claim 1 A process for production of a hydrocarbon product suitable for use as gasoline or as a blendstock, said process comprising the steps of converting a feed stream comprising alcohols, ethers or mixtures hereof over a metal-containing zeolite based catalyst, active in dehydrogenation of hydrocarbons, in a conversion step thereby obtaining a conversion effluent, separating said effluent to obtain an aqueous process condensate stream, a liquid hydrocarbon stream and a gaseous stream, removing part of the hydrogen formed in the conversion step, and recycling at least part of the gaseous and/or liquid hydrocarbon streams to the conversion step. ### Claim 2 (depends on 1) A process according to claim 1 wherein hydrogen is removed by purging at least part of the gaseous recycle stream. ### Claim 3 (depends on 1) A process according to claim 1, wherein the liquid hydrocarbon phase is separated into a product phase and one or more lower- and/or higher-boiling phases, at least one of which lower- and/or higher-boiling phases is at least partially recycled to the conversion step as the at least partly H2 depleted recycle. ### Claim 4 (depends on 1) A process according to claim 1, wherein the liquid hydrocarbon stream and/or product phase comprises raw gasoline, Stabilized gasoline or gasoline with an aromatics content below 40%, a hydrocarbon product suitable as blend stock. ### Claim 5 (depends on 1) A process according to claim 1, wherein the liquid hydrocarbon stream and/or product phase has a durene content below 6%. ### Claim 6 (depends on 1) A process according to claim 1, wherein the hydrocarbon product is a high octane gasoline blendstock. ### Claim 7 (depends on 1) A process according to claim 1, wherein at least part of the gaseous phase is recycled to the conversion step. ### Claim 8 (depends on 1) A process according to claim 1, wherein the conversion step takes place in two or more consecutive reactors. ### Claim 9 (depends on 1) A process according to claim 1, wherein the at least part of the recycle stream or recycle streams is returned to one or more points upstream the conversion step. ### Claim 10 (depends on 1) A process according to claim 1, comprising a step regulating the H2 content in the at least partly H2 depleted recycle stream. ### Claim 11 (depends on 1) A process according to claim 1, wherein the zeolite based catalyst is a single bifunctional catalyst catalysing both methanol to hydrocarbons and dehydrogenation. ### Claim 12 (depends on 1) A process according to claim 1, wherein the zeolite based catalyst comprises a mixture of two or more catalysts which in combination catalyse both methanol to hydrocarbons and dehydrogenation reactions. ### Claim 13 (depends on 1) A process according to claim 1, wherein the zeolite based catalyst comprises a metal and/or metal oxide and a zeolite. ### Claim 14 (depends on 1) A process according to claim 1, wherein catalyst comprises a zeolite and a metal selected from the group consisting of Zn, Ga, In, Mo, Ag, P, Ge, Sn, Pd and Pt. ### Claim 15 (depends on 1) A process according to claim 1, wherein the feed stream comprises methanol, dimethyl ether or mixtures hereof. ### Claim 16 (depends on 1) A process according to claim 1, wherein the process is carried out in one or more fixed bed reactors. ### Claim 17 (depends on 1) A process according to claim 1, wherein the process is carried out in one or more fluid bed reactors. ### Claim 18 (depends on 1) A process according to claim 1, wherein the dehydrogenation catalyst is arranged as a top and/or bottom layer in the conversion reactor and/or in one or more separate dehydrogenation reactors. ### Claim 19 A plant for the conversion of methanol to hydrocarbons comprising aromatics, said plant comprising means for supplying a feed stream comprising methanol, dimethyl ether or mixtures hereof a conversion reactor a separator for separating a conversion effluent into a gaseous recycle stream, process condensate and a liquid product, means for removing H2 from at least part of the effluent thereby obtaining at least one at least partially H2 depleted recycle stream, and means for recycling the at least part of the effluent. ### Claim 20 (depends on 19) A plant for the conversion of methanol to hydrocarbons according to claim 19, wherein the means for removing H2 from at least part of the effluent obtaining at least one at least partly H2 depleted recycle stream is a selective membrane, a selective oxidation step and/or a step wherein a hydrogen scavenger is converted into methanol or water in the presence of H2 and a hydrogenation catalyst. ### Claim 21 (depends on 19) A plant for the conversion of methanol to hydrocarbons according to claim 19, wherein the means for removing H2 from at least part of the effluent obtaining at least one at least partly H2 depleted recycle stream comprises means for separating the liquid hydro carbon stream into at least a product phase and one or more lower- and/or higher-boiling phases and means for recycling at least one of said lower- and/or higher-boiling phases as the at least partly H2 depleted recycle. ### Claim 22 (depends on 1) Product obtained by any of the plant, process or catalyst according to claim 1. ### Claim 23 (depends on 1) Gasoline obtained by any of the plant or process according to claim 1. ### Claim 24 (depends on 1) Reformate blendstock obtained by any of the plant, process according to claim 1. ### Claim 25 (depends on 1) High octane gasoline blendstock obtained by any of the plant, process or catalyst according to claim 1.