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公开(公告)号：US20240124376A1
公开(公告)日：2024-04-18
申请号：US18220404
申请日：2023-07-11
摘要： The present disclosure relates in its first aspect to a process of converting a stream comprising methane into chemicals, said process being remarkable in that it comprises the steps of providing a first stream (1, 5, 11) comprising methane, providing a second stream (79) which is a bromine-rich stream, putting into contact said first stream (15) with said second stream (79) to obtain a third stream (21) comprising at least unreacted methane, methyl bromide, dibromomethane, and hydrogen bromide and removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and hydrogen bromide; wherein the fourth stream (27) is converted into chemicals. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.
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公开(公告)号：US20240102178A1
公开(公告)日：2024-03-28
申请号：US18525767
申请日：2023-11-30
CPC分类号： C25B1/02 , C01B7/093 , C01B32/05 , C01B32/205 , C25B1/04 , C25B1/24 , C25B15/085 , C25B5/00
摘要： The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
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公开(公告)号：US11858822B2
公开(公告)日：2024-01-02
申请号：US16627721
申请日：2019-01-15
摘要： The invention relates to the field of efficient separation and recovery of bromine by full wet method, especially to a two-step separating method of bromide and recovery of lead and zinc from printed circuit board Incineration ash. It mainly includes first sodium hydroxide alkaline leaching, secondary sodium peroxide alkaline leaching, pH adjustment, separate lead and zinc, bromide evaporation and crystallization to recover crude bromide and other steps. Compared with traditional comprehensive recovery process of ash, the invention uses sodium hydroxide to dissolve bromide, lead and zinc, and uses the strong oxidation of sodium peroxide in alkaline environment, copper bromide and other bromine are oxidized and leached; through two-step method, the efficient leaching of bromine, lead and zinc is realized, silver and other precious metals are enriched at the same time. It is beneficial to subsequent recovery of precious metals and has the characteristics of short tail liquid discharge.
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公开(公告)号：US20230118848A1
公开(公告)日：2023-04-20
申请号：US17915958
申请日：2021-03-29
发明人： Romuald COUPAN , Nikolai NESTERENKO , Gleb VERYASOV , Zhongyi John DING , Jingsong ZHOU , Miguel A.F. SANTOS , Mircea G CRETOIU
摘要： The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
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公开(公告)号：US20210316989A1
公开(公告)日：2021-10-14
申请号：US17356744
申请日：2021-06-24
申请人： FEI Company
发明人： Clive Chandler
摘要： Disclosed herein are embodiments of a method and system for producing a halogen gas. The method may comprise contacting a solid oxidizing agent with a vapor comprising a halide compound, to produce a gas stream comprising a halogen corresponding to the halide in the halide compound. The halide compound may be an acyl halide, such as an acetyl halide or an oxalyl halide. The oxidizing agent may be any suitable oxidizing agent, and in certain examples, potassium permanganate is used. The method may be performed under a reduced pressure. Also disclosed herein is a system suitable to perform the disclosed method. The system may comprise a reservoir, an oxidizing agent support and a gas stream outlet.
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公开(公告)号：US11072528B2
公开(公告)日：2021-07-27
申请号：US16390617
申请日：2019-04-22
申请人： FEI Company
发明人： Clive Chandler
摘要： Disclosed herein are embodiments of a method and system for producing a halogen gas. The method may comprise contacting a solid oxidizing agent with a vapor comprising a halide compound, to produce a gas stream comprising a halogen corresponding to the halide in the halide compound. The halide compound may be an acyl halide, such as an acetyl halide or an oxalyl halide. The oxidizing agent may be any suitable oxidizing agent, and in certain examples, potassium permanganate is used. The method may be performed under a reduced pressure. Also disclosed herein is a system suitable to perform the disclosed method. The system may comprise a reservoir, an oxidizing agent support and a gas stream outlet.
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公开(公告)号：US10722833B2
公开(公告)日：2020-07-28
申请号：US16128585
申请日：2018-09-12
发明人： Colin Baptist , Claire Cahill , Matthew John Cousins , David Davis , Michelle Taylor Wilson , Christopher John Young
摘要： A process is described for removing halogen compounds, particularly chlorine compounds, from a process fluid, comprising the steps of (i) passing a process fluid containing hydrogen halide over a first sorbent to remove hydrogen halide and generate a hydrogen halide depleted process fluid and then, (ii) passing the hydrogen halide depleted process fluid over a second different sorbent to remove organic halide compounds therefrom. A purification system suitable for removing hydrogen halide and organic halide compounds from process fluids is also described.
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公开(公告)号：US20180280919A1
公开(公告)日：2018-10-04
申请号：US15765084
申请日：2016-10-04
申请人： SGL CARBON SE
CPC分类号： B01J19/02 , B01J19/2415 , B01J2208/00504 , B01J2219/00157 , B01J2219/0254 , B01J2219/0263 , B01J2219/0272 , B01J2219/0281 , B01J2219/0295 , C01B7/00 , C01B7/012 , C01B7/093 , F23D14/24 , F23D14/62
摘要： A new type of burning device for producing hydrohalogen compounds.
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公开(公告)号：US20150147265A1
公开(公告)日：2015-05-28
申请号：US14405201
申请日：2013-05-24
发明人： William B. Harrod , John M. Harden , Rhett P. Heeb , Steven G. Karseboom , Gary L. Sharp , Robert E. Williams
IPC分类号： C01B7/09
摘要： Processes of and systems for removing free bromine from gaseous anhydrous HBr contaminated with free bromine are described. In one type of process the gaseous contaminated HBr is fed into countercurrent contact with at least one liquid alkylaromatic hydrocarbon within a packed section of a column while maintaining the packed section under free radical bromination conditions so that one or more than one liquid a-bromoalkylaromatic compound is produced along with one mole of gaseous HBr per mole of a-bromoalkylaromatic compound produced. In another type of process the gaseous anhydrous HBr is fed into countercurrent contact through at least two scrubbers so that the gaseous anhydrous HBr is scrubbed substantially free of bromine by passage through these at least two scrubbers, each of which contains a different specified type of scrubbing liquid. In one embodiment the liquid alkylaromatic hydrocarbon comprises 1,2-diphenylethane.
摘要翻译： 描述了用游离溴污染的气态无水HBr除去游离溴的方法和系统。 在一种类型的方法中，将气体污染的HBr与柱内填充部分中的至少一种液体烷基芳烃进行逆流接触，同时将填充部分保持在自由基溴化条件下，使得一种或多于一种液体α-溴烷基芳族化合物 与每摩尔产生的α-溴烷基芳族化合物一摩尔气态HBr一起产生。 在另一种类型的方法中，气态无水HBr通过至少两个洗涤器进料到逆流接触中，使得气态无水HBr通过这些至少两个洗涤器被洗涤，基本上不含溴，每个洗涤器含有不同的指定类型的洗涤 液体。 在一个实施方案中，液体烷基芳族烃包括1,2-二苯基乙烷。
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公开(公告)号：US20130287675A1
公开(公告)日：2013-10-31
申请号：US13997964
申请日：2011-12-28
IPC分类号： C01B7/09
摘要： A new, highly selective way of removing bromine contamination from a gaseous stream comprised of hydrogen bromide and bromine is described. Such process technology involves non-catalyzed free radical (benzylic) bromination of an alkylene-bridged aromatic hydrocarbon and/or certain alkyl-substituted aromatic hydrocarbons and recovering the purified gaseous HBr. Because of the high selectivity of the bromination on the aliphatic bridges or side-chains, virtually no ring bromination occurs, and this enables recovery of the bromine values in the form of HBr. Thus preferably, the bromine is recovered as HBr from the scrubbing liquid by subjecting the scrubbing liquid to thermal or catalytic dehyrobromination. In plant operations, the gaseous HBr purified in the process can then be introduced into a compressor to produce either liquid or gaseous HBr for storage under pressure. Alternatively, the purified gaseous HBr can be fed directly into one or more reactions in which HBr is used as a reactant.
摘要翻译： 描述了从由溴化氢和溴组成的气流中除去溴污染物的新的高度选择性的方法。 这种方法技术涉及亚烷基桥连芳烃和/或某些烷基取代芳烃的非催化自由基（苄基）溴化，并回收纯化的气态HBr。 由于溴化对脂族桥或侧链的高选择性，实际上不发生环溴化，因此能够以HBr的形式回收溴值。 因此，优选地，通过对洗涤液进行热或催化脱氢化，从洗涤液中将溴作为HBr回收。 在工厂操作中，在该过程中纯化的气态HBr然后可以被引入压缩机以产生液体或气体HBr以在压力下储存。 或者，纯化的气态HBr可以直接进料到一个或多个反应中，其中使用HBr作为反应物。
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