硫化氢

The treatment of hydrogen sulfide odor of petrochemical enterprise using bleaching powder was studied primarily in this experiment which including bleaching powder adding amount,hydrogen sulfide concentration,odor flux,absorption-oxidation temperature,and so on.

实验采用填料吸收塔对漂白粉用于石化企业硫化氢恶臭的治理进行了初步研究，系统研究了漂白粉投加量、硫化氢浓度、进气流量、吸收氧化温度、液气比等因素对处理效果的影响。

Vulcanization thing in sulphur natural gas, take off to exclude, Make organic sulfur content and the vulcanization hydrogen of the natural gas of raw material accord with relevant technical index requirement , satisfy production needs,Today of the chemical swift development of natural gas the desulphurization method of natural gas also emerge endlessly , In traditional a ethanol amine the foundation of wet desulphurization and the dry law desulphurization of zinc oxide on, have arisen the desulphurization of normal temperature of ferric oxide, the dry law desulphurization of activated carbon and member sift desulphurization, DDS biochemical wet desulphurization wait for new technology .

硫的存在造成合成氨工艺中催化剂中毒，因此需将含硫天然气中的硫化氢、有机硫等硫化物脱除，使产品天然气的硫化氢和有机硫含量符合有关技术指标要求，满足生产需要。在天然气化工迅猛发展的今天，天然气脱硫方法也层出不穷。在传统一已醇胺湿法脱硫，氧化锌干法脱硫的基础上，出现了常温氧化铁脱硫，活性炭干法脱硫，分子筛脱硫，DDS生化湿法脱硫等新技术。

In this paper, mechanism and influencing factors of hydrogen sulfide corrosion were discussed, and methods for controlling hydrogen sulfide corrosion were presented.

本文详细地论述了硫化氢腐蚀的机理及影响因素，并阐述了控制硫化氢腐蚀的方法。

The results showed that hydrogen sulfide system was important in inorganic chemistry.

讨论了硫化氢系统分析法的理论基础、分组方案和操作步骤，并对硫化氢系统分组进行了理论探讨，从而说明了硫化氢系统在无机化学中的重要性。

The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

The process improvement of flaky sodium hydrosulfide production;2. The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

Based on discuss ion about the problems that occurred during wellsite H2S detecting, the paper expounded the countermeasures to solve the above problems, the key points of whi ch were changing passive monitoring to active prevention, strengthening stratigr aphic correlation, pressure prediction, drilling fluid property monitoring and s o on, besides, carrying out H2S graded alarm ...

该文在探讨井场硫化氢监测过程中存在的问题基础上，阐述了解决这些问题的对策，其重点是变被动监控为主动预防，加强地层对比、压力预测和钻井液性能监控等，同时实行硫化氢的分级报警，以达到防患于未然的目的。对于指导硫化氢地区钻井施工，确保人员及设备安全具有一定的指导意义。

Hydrogen sulfide was aspirated to a midget impinger containing absortant solution and analysed by spectrophotometric method.

结果显示，龙凤谷、硫磺谷之环境空气硫化氢浓度范围从无法测得到2.42mg/m3，其硫化氢浓度远高於一般生活环境，且有82%的空气样本浓度高於硫化氢之中华民国环境空气品质标准0.1ppm。

Since H〓S and SO〓 adsorbed on TiO〓 could react with each other and TiO〓 is the medium of their electron transfer, thus SO〓 could not be adsorbed quite strong on the active site of TiO〓, which makes it more resistant to sulfating and increase the stability of catalyst. Finally, the model and mechanism of the reduction of SO〓 by NH〓 to elemental sulfur is advanced as follows: on the sulfide catalyst, ammonia is decomposed to N〓 and H〓, and H〓 reacts with SO〓 to form the intermedium of H〓S; then H〓S and SO〓 react as Claus reaction on TiO〓 catalyst.

反应系统中过量水蒸气的存在使催化剂表面某些活性位被水蒸气抑制使活性和选择性有较大幅度降低，但这种影响是可逆的，不会造成催化剂永久性中毒；另外当单质硫和水蒸气同时存在时，在〓催化剂上能够生成硫化氢和二氧化硫，而且由于硫化氢和二氧化硫化学吸附能力不同而导致它们的脱附顺序不同，硫化氢的生成温度总是低于二氧化硫的生成温度，说明过量水蒸气的存在会导致氧化物催化剂上逆克劳斯反应的发生；而在硫化物催化剂上几乎没有硫化氢和二氧化硫生成，说明硫化物催化剂能够抑制逆克劳斯反应的发生。

Results During the period of 1992 to 2004, a number of 41 acute sulfureted hydrogen poisonings occurred in Shanghai with 132 workers poisoned and 46 workers died (34.8%); acute sulfureted hydrogen poisoning showed an increasing tendency, which mostly occurred during the work of sewage pipe dredging in the city planning projects; 68.3% of acute sulfureted hydrogen poisonings occurred in the confined spaces, which was 2.2 times of that in the non-confined spaces.

结果 上海市1992~2004年间共发生急性硫化氢中毒事故41起，造成132人中毒，其中46人死亡，病死率34.8%；1999~2004年，硫化氢中毒呈现上升趋势；硫化氢中毒多发生在市政污水管道疏通或窨井污物清理等作业中；68.3%的硫化氢中毒发生在密闭空间，是非密闭空间的2.2倍。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐